| 73 |
How to Make Your Site Look Half-Decent in Half an Hour |
Programmers like me are often intimidated by design – but a little effort can give a huge return on investment. Here are one coder’s tips for making any site quickly look more professional.
I am a programmer. I am not a designer. I have a degree in computer science, and I don’t mind Comic Sans. (It looks cheerful. Move on.)
But although I am a programmer, I want to make my sites look attractive. This is partly out of vanity, and partly realism. Vanity because I want people to think my work is good, and realism because the research shows that people won’t think a site is credible unless it also looks attractive.
For a very long time after I became a programmer, I was scared of design. Design seemed to consist of complicated rules that weren’t written down anywhere, plus an unlearnable sense of taste, possessed only by a black-clad elite.
But a little while ago, I decided to do my best to hack what it took to make my own projects look vaguely attractive. And although this doesn’t come close to the effect a professional designer could achieve, gathering these resources for improving a site’s look and feel has been really helpful.
If I hadn’t figured out some basic design shortcuts, it’s unlikely that a weekend hack of mine would have ended up on page three of the Daily Mail. And too often now, I see excellent programming projects that don’t reach the audience they deserve, simply because their design doesn’t match their execution.
So, if you are a developer, my Christmas present to you is this: my own collection of hacks that, used rightly, can make your personal programming projects look professional, quickly. None are hard to learn, most are free, and they let you focus on writing code.
One thing to note about these tips, though. They are a personal, pragmatic compilation. They are suggestions, not a definitive guide. You will definitely get better results by working with a professional designer, and by studying design more deeply.
If you are a designer, I would love to hear your suggestions for the best tools that I’ve missed, and I’d love to know how we programmers can do things better.
With that, on to the tools…
1. Use Bootstrap
If you’re not already using Bootstrap, start now. I really think that Bootstrap is one of the most significant technical achievements of the last few years: it democratizes the whole process of web design.
Essentially, Bootstrap is a a grid system, with a bunch of common elements. So you can lay your site out how you want, drop in simple elements like forms and tables, and get a good-looking, consistent result, without spending hours fiddling with CSS. You just need HTML.
Another massive upside is that it makes it easy to make any site responsive, so you don’t have to worry about writing media queries. Go, get Bootstrap and check out the examples. To keep your site lightweight, you can customize your download to include only the elements you want.
If you have more time, then Mark Otto’s article on why and how Bootstrap was created at Twitter is well worth a read.
2. Pimp Bootstrap
Using Bootstrap is already a significant advance on not using Bootstrap, and massively reduces the tedium of front-end development. But you also run the risk of creating Yet Another Bootstrap Site, or Hack Day Design, as it’s known.
If you’re really pressed for time, you could buy a theme from Wrap Bootstrap. These are usually created by professional designers, and will give a polish that we can’t achieve ourselves. Your site won’t be unique, but it will look good quickly.
Luckily, it’s pretty easy to make Bootstrap not look too much like Bootstrap – using fonts, CSS effects, background images, colour schemes and so on. Most of the rest of this article covers different ways to achieve this.
We are going to customize this Bootstrap example page.
This already has some custom CSS in the <head>. We’ll pull it all out, and create a new CSS file, custom.css. Then we add a reference to it in the header. Now we’re ready to start customizing things.
3. Fonts
Web fonts are one of the quickest ways to make your site look distinctive, modern, and less Bootstrappy, so we’ll start there.
First, we can add some sweet fonts, from Google Web Fonts. The intimidating bit is choosing fonts that look nice together. Luckily, there are plenty of suggestions around the web: we’re going to use one of DesignShack’s suggested free Google Fonts pairings. Our fonts are Corben (for headings) and Nobile (for body copy).
Then we add these files to our <head>.
<link href="http://fonts.googleapis.com/css?family=Corben:bold" rel="stylesheet" type="text/css">
<link href="http://fonts.googleapis.com/css?family=Nobile" rel="stylesheet" type="text/css">
…and this to custom.css:
h1, h2, h3, h4, h5, h6 {
font-family: 'Corben', Georgia, Times, serif;
}
p, div {
font-family: 'Nobile', Helvetica, Arial, sans-serif;
}
Now our example looks like this. It’s not going to win any design awards, but it’s immediately better:
I also recommend the web font services Fontdeck, or Typekit – these have a wider selection of fonts, and are worth the investment if you regularly need to make sites look good. For more font combinations, Just My Type suggests appealing pairings from Typekit. Finally, you can experiment with type pairing ideas at Type Connection. For the design background on pairing fonts, Typekit’s post is worth a read.
4. Textures
An instant way to make a site look classy is to use textures. You know the grey, stripy, indefinably elegant background on 24ways.org? That.
If only there was a superb resource listing attractive, free, ready-to-use textures… Oh wait, there’s Atle Mo’s Subtle Patterns.
We’re going to use Cream Dust, for an effect that can only be described as subtle. We download the file to a new /img/ directory, then add this to the CSS file:
body {
background: url(/img/cream_dust.png) repeat 0 0;
}
Bang:
For some design background on patterns, I recommend reading through Smashing Magazine’s guidelines on textures. (TL;DR version: use textures to enhance beauty, and clarify the information architecture of your site; but don’t overdo it, or inadvertently obscure your text.)
Still more to do, though. Onwards.
5. Icons
Last year’s 24 ways taught us to use icon fonts for our site icons.
This is great for the time-pressed coder, because icon fonts don’t just cut down on HTTP requests – they’re a lot quicker to set up than image-based icons, too.
Bootstrap ships with an extensive, free for commercial use icon set in the shape of Font Awesome. Its icons are safe for screen readers, and can even be made to work in IE7 if needed (we’re not going to bother here).
To start using these icons, just download Font Awesome, and add the /fonts/ directory to your site and the font-awesome.css file into your /css/ directory. Then add a reference to the CSS file in your header:
<link rel="stylesheet" href="/css/font-awesome.css">
Finally, we’ll add a truck icon to the main action button, as follows. Why a truck? Why not?
<a class="btn btn-large btn-success" href="#"><i class="icon-truck"></i> Sign up today</a>
We’ll also tweak our CSS file to stop the icon nudging up against the button text:
.jumbotron .btn i {
margin-right: 8px;
}
And this is how it looks:
Not the most exciting change ever, but it livens up the page a bit. The licence is CC-BY-3.0, so we also include a mention of Font Awesome and its URL in the source code.
If you’d like something a little more distinctive, Shifticons lets you pay a few cents for individual icons, with the bonus that you only have to serve the icons you actually use, which is more efficient. Its icons are also friendly to screen readers, but won’t work in IE7.
6. CSS3
The next thing you could do is add some CSS3 goodness. It can really help the key elements of the site stand out.
If you are pressed for time, just adding box-shadow and text-shadow to emphasize headings and standouts can be useful:
h1 {
text-shadow: 1px 1px 1px #ccc;
}
.div-that-you want-to-stand-out {
box-shadow: 0 0 1em 1em #ccc;
}
We have a little more time though, so we’re going to do something more subtle. We’ll add a radial gradient behind the main heading, using an online gradient editor.
The output is hefty, but you can see it in the CSS. Note that we also need to add the following to our HTML, for IE9 support:
<!--[if gte IE 9]>
<style type="text/css">
.gradient {
filter: none;
}
</style>
<![endif]-->
And the effect – I don’t know what a designer would think, but I like the way it makes the heading pop.
For a crash course in useful modern CSS effects, I highly recommend CodeSchool’s online course in Functional HTM5 and CSS3. It costs money ($25 a month to subscribe), but it’s worth it for the time you’ll save. As a bonus, you also get access to some excellent JavaScript, Ruby and GitHub courses.
(Incidentally, if you find yourself fighting with basic float and display attributes in CSS – and there’s no shame in it, CSS layout is not intuitive – I recommend the CSS Cross-Country course at CodeSchool.)
7. Add a twist
We could leave it there, but we’re going to add a background image, and give the site some personality.
This is the area of design that I think many programmers find most intimidating. How do we create the graphics and photographs that a designer would use? The answer is iStockPhoto and its competitors – online image libraries where you can find and pay for images. They won’t be unique, but for our purposes, that’s fine.
We’re going to use a Christmassy image. For a twist, we’re going to use Backstretch to make it responsive.
We must pay for the image, then download it to our /img/ directory. Then, we set it as our <body>’s background-image, by including a JavaScript file with just the following line:
$.backstretch("/img/winter.jpg");
We also reset the subtle pattern to become the background for our container image. It would look much better transparent, so we can use this technique in GIMP to make it see-through:
.container-narrow {
background: url(/img/cream_dust_transparent.png) repeat 0 0;
}
We also fiddle with the padding on body and .container-narrow a bit, and this is the result:
(Aside: If this were a real site, I’d want to buy images in multiple sizes and ensure that Backstretch chose the most appropriately sized image for our screen, perhaps using responsive images.)
How to find the effects that make a site interesting? I keep a set of bookmarks for interesting JavaScript and CSS effects I might want to use someday, from realistic shadows to animating grids. The JavaScript Weekly newsletter is a great source of ideas.
8. Colour schemes
We’re just about getting there – though we’re probably past half an hour now – but that button and that menu still both look awfully Bootstrappy.
Real sites, with real designers, have a colour palette, carefully chosen to harmonize and match the brand profile. For our purposes, we’re just going to borrow some colours from the image. We use Gimp’s colour picker tool to identify the hex values of the blue of the snow. Then we can use Color Scheme Designer to find contrasting, but complementary, colours.
Finally, we use those colours for our central button. There are lots of tools to help us do this, such as Bootstrap Buttons. The new HTML is quite long, so I won’t paste it all here, but you can find it in the CSS file.
We also reset the colour of the pills in the navigation menu, which is a bit easier:
.nav-pills > .active > a, .nav-pills > .active > a:hover {
background-color: #FF9473;
}
I’m not sure if the result is great to be honest, but at least we’ve lost those Bootstrap-blue buttons:
Another way to do it, if you didn’t have an image to match, would be to borrow an attractive colour scheme. Colourlovers is a community where people create and share ready-made colour palettes.
The key thing is to find a palette with an open licence, so you can legitimately use it. Unfortunately, you can’t search for palettes by licence type, but many do have open licences. Here’s a popular palette with a CC-BY-SA licence that allows reuse with attribution.
As above, you can use the hex values from the palette in your custom CSS, and bask in the newly colourful results.
9. Read on
With the above techniques, you can make a site that is starting to look slightly more professional, pretty quickly.
If you have the time to invest, it’s well worth learning some design principles, if only so that design seems less intimidating and more like fun. As part of my design learning, I read a few introductory design books aimed at coders. The best I found was David Kadavy’s Design for Hackers: Reverse-Engineering Beauty, which explains the basic principles behind choosing colours, fonts, typefaces and layout.
In the introduction to his book, David writes:
No group stands to gain more from design literacy than hackers do… The one subject that is exceedingly frustrating for hackers to try to learn is design. Hackers know that in order to compete against corporate behemoths with just a few lines of code, they need to have good, clear design, but the resources with which to learn design are simply hard to find.
Well said. If you have half a day to invest, rather than half an hour, I recommend getting hold of David’s book.
And the journey is over. Perhaps that took slightly more than half an hour, but with practice, using the above techniques can become second nature. What useful tools have I missed? Designers, how would you improve on the above? I would love to know, so please give me your views in the comments. |
2012 |
Anna Powell-Smith |
annapowellsmith |
2012-12-16T00:00:00+00:00 |
https://24ways.org/2012/how-to-make-your-site-look-half-decent/ |
design |
| 74 |
Should We Be Reactive? |
Evolution
Looking at the evolution of the web and the devices we use should help remind us that the times we’re adjusting to are just another step on a journey. These times seem to be telling us that we need to embrace flexibility.
Imagine an HTML file containing nothing but text. It’s viewable on any web-capable device and reasonably readable: the notion of the universality of the web was very much a founding principle. Right from the beginning, browser vendors understood that we’d want text to reflow (why wouldn’t we?), so I consider the first websites to have been fluid.
As we attempted to exert more control through our designs in the early days of the web, debates about whether we should produce fixed or fluid sites raged. We could create fluid designs using tables, but what we didn’t have then was a wide range of web capable devices or the ability to control this fluidity. The biggest changes occurred when stats showed enough people using a different screen resolution we could cater for.
To me, the techniques of responsive web design provide the control we were missing. Combining new approaches to layout and images with media queries empowered us to learn how to embrace the inherent flexibility of the web in ways to suit our work and the devices used by our audience.
Perhaps another kind of flexibility might be found in how we use context to affect how we present our content; to consider how we might use the information we can access from people, browsers and devices to provide web experiences – effectively creating sites that react to initial or changing circumstances in the relationship between people and our content.
Embracing flexibility
So what is context? Put simply, you could think of it as a secondary piece of information that helps clarify the meaning of the first. It helps set a scene or describe circumstances. I think that Cennydd Bowles has summed it up really well through talks he’s given recently, in which he’s arrived at the acronym DETAILS (Device, Environment, Time, Activity, Individual, Location, Social) – I encourage you to keep an eye out for his next book due in the new year where he’ll explore this idea much further. This clarity over what context could mean in terms of what we do on the web is fundamental, directing us towards ways we might use it.
When you stop to think about it, we’ve been using some basic pieces of this information right from the beginning, like bits of JavaScript or Java applets that serve an appropriate greeting to your site’s visitors, or show their location, or even local weather. But what if we think of this from the beginning of our projects?
We should think about our content first. Once we know this and have a direction, perhaps then we can think about what context, or even multiple contexts, might help us to communicate more effectively.
The real world
There’s always been a disconnect between the real world and the web, which is to be expected. But the world around us is a sea of data; every fundamental building block: people, places, events and things have information waiting to be explored.
For sites based around physical objects or locations, this divide is really apparent. We don’t ordinarily take the time to describe in code the properties of a place, or consider whether your relationship to the place in the real world should have any impact on your relationship with a site about it.
When I think about local businesses, they have such rich properties to draw on and yet we don’t really explore them in any meaningful way, even through something as simple as opening hours.
Now we have data…
We’ve long had access to the current time both on server- and client-sides. The use of geolocation is easier than ever, but when we look at the range of information we could glean to help us make some choices, maybe there’s some help on the horizon from projects like the W3C Device APIs Working Group. This might prove useful to help make us aware of network and battery conditions of a device, along with the potential to gain data from other sensors, which could tell us about lighting conditions, ambient noise levels and temperature depending on the capabilities of the device.
It may be that our sites have some form of login or access to your profile from another site. Along with data from our devices and browsers, this should give us a sense of how best to talk to our audience in certain situations. We don’t necessarily need to know any personal details, just enough to make decisions about how to present our sites.
The reactive web?
So why reactive web design? I’m hoping that a name might help us to have a common vocabulary not only about what we mean when we talk about context, but how it could be considered through our projects, right from the early stages. How could this manifest itself?
A simple example might be a location-aware panel on your site. Perhaps the space is a little down in your content hierarchy but serves a perfectly valid purpose by default. To visitors outside the country perhaps this works fine, but within your country maybe this panel could be used to communicate more effectively. Further still, if we knew the visitors were in the vicinity, we could talk to them more directly.
What if both time and location were relevant? This space could work as before but you could consider how time could intersect with your local audience. If you know they’re local and it’s a certain time of day, you could communicate directly with them.
This example isn’t beyond what banner ads often do and uses easily accessible information. There are more unusual combinations we may be able to find, such as movement and presence. Perhaps a site that tells a story, which changes design and content based on whether you’re moving, how long you’ve been on the site and how far you’ve travelled. This isn’t what we typically expect from websites, but we should bear in mind that what websites are now will not be what they become in the future.
You could do much of this contextual presentation through native apps, of course. The Silent History, an app novel written and designed for iPad and iPhone, uses an exploration element, providing “hundreds of location-based stories across the U.S. and around the world. These can be read only when your device’s GPS matches the coordinates of the specified location.” But considering the universality of the web, we could redefine what web-based experiences should be like. Not all methods would work well on the web, but that’s a decision that has to be made for a specific project.
By thinking more broadly about any web-capable device, we can use what we know to provide relevant experiences for our site’s visitors. We need to be sure what we mean by relevant, of course!
Reality bites
While there are incredible possibilities, from a simple panel on a site to something bordering on living sites that evolve and change with our circumstances, we need to act with a degree of pragmatism and understand how much of what we could do is based on assumptions and the bias of our own experiences.
We could go wild with changing the way our content is presented based on contextual information, but if we’re not careful what we end up with confuses and could provide a very fractured experience. As much as possible we need to think more ethnographically, observe and question people in the situations we think may be relevant, and test our assumptions as early as we can. Even on small projects, there may be ways we can validate our assumptions and test with our audience. The key to applying contextual content or cues is not to break the experience between contextual views (as I think we now wouldn’t when hiding content on a mobile view).
It’s another instance of progressive enhancement – as we know certain pieces of information, we can enhance the experience. Also, if you do change content, how can you not make a more cumbersome experience for your visitors?
It’s all about communication
Content is at the core of what we do, but if we consider context we need to understand the impact on that. The effect could be as subtle as an altered hierarchy, involve swapping out panels of content, or in extreme instances perhaps all of your content might change. In some ways, this extends the notion of adaptive content that Karen McGrane has been talking about, to how we write and store the content we create. Thinking about the the impact of context may require us to re-evaluate our site structure, too. Whatever we decide, we have to be clear what will happen and manage the expectations of our users.
The bottom line
What I’m proposing isn’t that we go crazy and end up with a confused, disjointed set of experiences across the web. What I hope is that starting right from the beginning of a project, we think about what context is and could be, and see what relevance it might have to what we’re trying to communicate. This strategic process leads us to think about design.
We are slowly adapting to what it means to be flexible through responsive and adaptive processes. What does thinking about contextual states mean to us (or designing for state in general)? Does this highlight again how difficult it’ll be for our tools to keep up with our processes and output?
In terms of code, the vast majority of this data comes from the client-side through JavaScript. While we can progressively enhance, this could lead to a lot of code bloat through feature or capability detection, and potentially a lot of conditional loading of scripts. It’s a real shame we don’t get much we can rely on from the server-side – we know how unreliable user agents are!
We need to understand why we’d do this. Are we trying to communicate well and be useful, or doing it to show off? Underneath it all, what do we base our decisions on? Do we have actual insight or are we proceeding from our assumptions and the bias of our own experiences? Scott Jenson summed it up best for me: (to paraphrase) the pain we put people through has to be greatly outweighed by the value we offer.
I see that this could be another potential step in our evolution on the web; continuing this exploration of the flexibility the web allows us. It’s amazing we can do such incredible things from what is essentially a set of disparate, linked documents. |
2012 |
Dan Donald |
dandonald |
2012-12-09T00:00:00+00:00 |
https://24ways.org/2012/should-we-be-reactive/ |
design |
| 77 |
Colour Accessibility |
Here’s a quote from Josef Albers:
In visual perception a colour is almost never seen as it really is[…] This fact makes colour the most relative medium in art.Josef Albers, Interaction of Color, 1963
Albers was a German abstract painter and teacher, and published a very famous course on colour theory in 1963. Colour is very relative — not just in the way that it appears differently across different devices due to screen quality and colour management, but it can also be seen differently by different people — something we really need to be more mindful of when designing.
What is colour blindness?
Colour blindness very rarely means that you can’t see any colour at all, or that people see things in greyscale. It’s actually a decreased ability to see colour, or a decreased ability to tell colours apart from one another.
How does it happen?
Inside the typical human retina, there are two types of receptor cells — rods and cones. Rods are the cells that allow us to see dark and light, and shape and movement. Cones are the cells that allow us to perceive colour. There are three types of cones, each responsible for absorbing blue, red, and green wavelengths in the spectrum.
Problems with colour vision occur when one or more of these types of cones are defective or absent entirely, and these problems can either be inherited through genetics, or acquired through trauma, exposure to ultraviolet light, degeneration with age, an effect of diabetes, or other factors.
Colour blindness is a sex-linked trait and it’s much more common in men than in women. The most common type of colour blindness is called deuteranomaly which occurs in 7% of males, but only 0.5% of females. That’s a pretty significant portion of the population if you really stop and think about it — we can’t ignore this demographic.
What does it look like?
People with the most common types of colour blindness, like protanopia and deuteranopia, have difficulty discriminating between red and green hues. There are also forms of colour blindness like tritanopia, which affects perception of blue and yellow hues. Below, you can see what a colour wheel might look like to these different people.
What can we do?
Here are some things you can do to make your websites and apps more accessible to people with all types of colour blindness.
Include colour names and show examples
One of the most common annoyances I’ve heard from people who are colour-blind is that they often have difficulty purchasing clothing and they will sometimes need to ask another person for a second opinion on what the colour of the clothing might actually be. While it’s easier to shop online than in a physical store, there are still accessibility issues to consider on shopping websites.
Let’s say you’ve got a website that sells T-shirts. If you only show a photo of the shirt, it may be impossible for a person to tell what colour the shirt really is. For clarification, be sure to reference the name of the colour in the description of the product.
United Pixelworkers does a great job of following this rule. The St. John’s T-shirt has a quirky palette inspired by the unofficial pink, white and green Newfoundland flag, and I can imagine many people not liking it.
Another common problem occurs when a colour filter has been added to a product search. Here’s an example from a clothing website with unlabelled colour swatches, and how that might look to someone with deuteranopia-type colour blindness.
The colour search filter below, from the H&M website, is much better since it uses names instead.
At first glance, Urban Outfitters also uses unlabelled colour swatches on product pages (below), but on closer inspection, the colour name is displayed on hover. This isn’t an ideal solution, because although it’ll work on a desktop browser, it won’t work on a touchscreen device where hovering isn’t an option.
Using overly fancy colour names, like the ones you might find labelling high-end interior paint can be just as confusing as not using a colour name at all. Names like grape instead of purple don’t really give the viewer any useful information about what the colour actually is on a colour wheel. Is grape supposed to be purple, or could it refer to red grapes or even green? Stick with hue names as much as possible.
Avoid colour-specific instructions
When designing forms, avoid labelling required fields only with coloured text. It’s safer to use a symbol cue like the asterisk which is colour-independent.
A similar example would be directing a user to click a green button to purchase a product. Label your buttons clearly and reference them in the site copy by function, not colour, to avoid confusion.
Don’t rely on colour coding
Designing accessible maps and infographics can be much more challenging.
Don’t rely on colour coding alone — try to use a combination of colour and texture or pattern, along with precise labels, and reflect this in the key or legend. Combine a blue background with a crosshatched pattern, or a pink background with a stippled dot — your users will always have two pieces of information to work with.
The map of the London subway system is an iconic image not just in London, but around the world. Unfortunately, it contains some colours that are indistinguishable from each other to a person with a vision problem. This is true not only for the London underground, but also for any other wayfinding system that relies on colour coding as the only key in a legend.
There are printable versions of the map available online in black and white, using patterns and shades of black and grey that are distinguishable, but the point is that there would be no need for such a map if it were designed with accessibility in mind from the beginning. And, if you’re a person who has a physical disability as well as a vision problem, the “Step-Free” guide map which shows stations is based on the original coloured map.
Provide alternatives and customization
While it’s best to consider these issues and design your app to be accessible by default, sometimes this might not be possible. Providing alternative styles or allowing users to edit their own colours is a feature to keep in mind.
The developers of the game Faster Than Light created an alternate colour-blind mode and asked for public feedback to make sure that it passed the test. Not much needed to be done, but you can see they added stripes to the red zones and changed some outlines to blue.
iChat is also a good example. Although by default it uses coloured bubbles to indicate a user’s status (available for chat, away or idle, or busy), included in the preferences is a “User Shapes to Indicate Status” option, which changes the shape of the standard circles to green circles, yellow triangles and red squares.
Pay attention to contrast
Colours that are similar in value but different in hue may be easy to distinguish between for a user with good vision, but a person who suffers from colour blindness may not be able to tell them apart at all. Proofing your work in greyscale is a quick way to tell if there’s enough contrast between the most important information in your design.
Check with a simulator
There are many tools out there for simulating different types of colour blindness, and it’s worth checking your design to catch any potential problems up front.
One is called Sim Daltonism and it’s available for Mac OS X. It’ll show a pop-up preview next to your cursor and you can choose which type of colour blindness you want to test from a drop-down menu.
You can also proof for the two most common types of colour blindness right in Photoshop or Illustrator (CS4 and later) while you’re designing.
The colour contrast check tool from designer and developer Jonathan Snook gives you the option to enter a colour code for a background, and a colour code for text, and it’ll tell you if the colour contrast ratio meets the Web Content Accessibility Guidelines 2.0. You can use the built-in sliders to adjust your colours until they meet the compliant contrast ratios. This is a great tool to test your palette before going live.
For live websites, you can use the accessibility tool called WAVE, which also has a contrast checker. It’s important to keep in mind, though, that while WAVE can identify contrast errors in text, other things can slip through, so a site that passes the test does not automatically mean it’s accessible in reality.
For example, the contrast checker here doesn’t notice that our red link in the introduction isn’t underlined, and therefore could blend into the surrounding paragraph text.
I know that once I started getting into the habit of checking my work in a simulator, I became more mindful of any potential problem areas and it was easier to avoid them up front. It’s also made me question everything I see around me and it sends red flags off in my head if I think it’s a serious colour blindness fail. Understanding that colour is relative in the planning stages and following these tips will help us make more accessible design for all. |
2012 |
Geri Coady |
gericoady |
2012-12-04T00:00:00+00:00 |
https://24ways.org/2012/colour-accessibility/ |
design |
| 79 |
Responsive Images: What We Thought We Needed |
If you were to read a web designer’s Christmas wish list, it would likely include a solution for displaying images responsively. For those concerned about users downloading unnecessary image data, or serving images that look blurry on high resolution displays, finding a solution has become a frustrating quest.
Having experimented with complex and sometimes devilish hacks, consensus is forming around defining new standards that could solve this problem. Two approaches have emerged.
The <picture> element markup pattern was proposed by Mat Marquis and is now being developed by the Responsive Images Community Group. By providing a means of declaring multiple sources, authors could use media queries to control which version of an image is displayed and under what conditions:
<picture width="500" height="500">
<source media="(min-width: 45em)" src="large.jpg">
<source media="(min-width: 18em)" src="med.jpg">
<source src="small.jpg">
<img src="small.jpg" alt="">
<p>Accessible text</p>
</picture>
A second proposal put forward by Apple, the srcset attribute, uses a more concise syntax intended for use with the <img> element, although it could be compatible with the <picture> element too. This would allow authors to provide a set of images, but with the decision on which to use left to the browser:
<img src="fallback.jpg" alt="" srcset="small.jpg 640w 1x, small-hd.jpg 640w 2x, med.jpg 1x, med-hd.jpg 2x ">
Enter Scrooge
Men’s courses will foreshadow certain ends, to which, if persevered in, they must lead.
Ebenezer Scrooge
Given the complexity of this issue, there’s a heated debate about which is the best option. Yet code belies a certain truth. That both feature verbose and opaque syntax, I’m not sure either should find its way into the browser – especially as alternative approaches have yet to be fully explored.
So, as if to dampen the festive cheer, here are five reasons why I believe both proposals are largely redundant.
1. We need better formats, not more markup
As we move away from designs defined with fixed pixel values, bitmap images look increasingly unsuitable. While simple images and iconography can use scalable vector formats like SVG, for detailed photographic imagery, raster formats like GIF, PNG and JPEG remain the only suitable option.
There is scope within current formats to account for varying bandwidth but this requires cooperation from browser vendors. Newer formats like JPEG2000 and WebP generate higher quality images with smaller file sizes, but aren’t widely supported.
While it’s tempting to try to solve this issue by inventing new markup, the crux of it remains at the file level.
Daan Jobsis’s experimentation with image compression strengthens this argument. He discovered that by increasing the dimensions of a JPEG image while simultaneously reducing its quality, a smaller files could be produced, with the resulting image looking just as good on both standard and high-resolution displays.
This may be a hack in lieu of a more permanent solution, but it’s applied in the right place. Easy to accomplish with existing tools and without compatibility issues, it has few downsides. Further experimentation in this area should be encouraged, with standardisation efforts more helpful if focused on developing new image formats or, preferably, extending existing ones.
2. Art direction doesn’t belong in markup
A desired benefit of the <picture> markup pattern is to allow for greater art direction. For example, rather than scaling down images on smaller displays to the point that their content is hard to discern, we could present closer crops instead:
This can be achieved with CSS of course, although with a download penalty for those parts of an image not shown. This point may be negligible, however, since in the context of adaptable layouts, these hidden areas may end up being revealed anyway.
Art direction concerns design, not content. If we wish to maintain a separation of concerns, including presentation within our markup seems misguided.
3. The size of a display has little relation to the size of an image
By using media queries, the <picture> element allows authors to choose which characteristics of the screen or viewport to query for different images to be displayed.
In developing sites at Clearleft, we have noticed that the viewport is essentially arbitrary, with the size of an image’s containing element more important. For example, look at how this grid of images may adapt at different viewport widths:
As we build more modular systems, components need to be adaptable in and of themselves. There is a case to be made for developing more contextual methods of querying, rather than those based on attributes of the display.
4. We haven’t lived with the problem long enough
A key strength of the web is that the underlying platform can be continually iterated. This can also be problematic if snap judgements are made about what constitutes an improvement.
The early history of the web is littered with such examples, be it the perceived need for blinking text or inline typographic styling. To build a platform for the future, additions to it should be carefully considered. And if we want more consistent support across browsers, burdening vendors with an ever increasing list of features seems counterproductive.
Only once the need for a new feature is sufficiently proven, should we look to standardise it. Before we could declare hover effects, rounded corners and typographic styling in CSS, we used JavaScript as a polyfill. Sure, doing so was painful, but use cases were fully explored, and the CSS specification better reflected the needs of authors.
5. Images and the web aesthetic
The srcset proposal has emerged from a company that markets its phones as being able to browse the real – yet squashed down, tapped and zoomable – web. Perhaps Apple should make its own website responsive before suggesting how the rest of us should do so.
Converserly, while the <picture> proposal has the backing of a few respected developers and designers, it was born out of the work Mat Marquis and Filament Group did for the Boston Globe. As the first large-scale responsive design, this was a landmark project that ignited the responsive web design movement and proved its worth. But it was the first.
Its design shares a vernacular to that of contemporary newspaper websites, with a columnar, image-laden and densely packed layout. Compared to more recent examples – Quartz, The Next Web and the New York Times Skimmer – it feels out of step with the future direction of news sites. In seeking out a truer aesthetic for the web in which software interfaces have greater influence, we might discover that the need for responsive images isn’t as great as originally thought.
Building for the future
With responsive design, we’ve accepted the idea that a fully fluid layout, rather than a set of fixed layouts, is best suited to the web’s unpredictable nature. Current responsive image proposals are antithetical to this approach.
We need solutions that lack complexity, are device-agnostic and work within existing workflows. Any proposal that requires different versions of the same image to be created, is likely to have to acquiesce under the pressure of reality.
While it’s easy to get distracted about the size and quality of an image, and how we might choose to serve it, often the simplest solution is not to include it at all. After years of gluttonous design practice, in which fast connections and expansive display sizes were an accepted norm, we have got use to filling pages with needless images and countless items of page furniture.
To design more adaptable experiences, the presence of every element needs to be questioned, for its existence requires additional data to be downloaded or futher complexity within a design system. Conditional loading techniques mean that the inclusion of images is no longer a binary choice, but can instead appear in a progressively enhanced manner.
So here is my proposal. Instead of spending the next year worrying about responsive images, let’s embrace the constraints of the medium, and seek out new solutions that can work within them. |
2012 |
Paul Lloyd |
paulrobertlloyd |
2012-12-11T00:00:00+00:00 |
https://24ways.org/2012/responsive-images-what-we-thought-we-needed/ |
code |
| 80 |
HTML5 Video Bumpers |
Video is a bigger part of the web experience than ever before. With native browser support for HTML5 video elements freeing us from the tyranny of plugins, and the availability of faster internet connections to the workplace, home and mobile networks, it’s now pretty straightforward to publish video in a way that can be consumed in all sorts of ways on all sorts of different web devices.
I recently worked on a project where the client had shot some dedicated video shorts to publish on their site. They also had some five-second motion graphics produced to top and tail the videos with context and branding. This pretty common requirement is a great idea on the web, where a user might land at your video having followed a link and be viewing a page without much context.
Known as bumpers, these short introduction clips help brand a video and make it look a lot more professional.
Adding bumpers to a video
The simplest way to add bumpers to a video would be to edit them on to the start and end of the video file itself. Cooking the bumpers into the video file is easy, but should you ever want to update them it can become a real headache. If the branding needs updating, for example, you’d need to re-edit and re-encode all your videos. Not a fun task.
What if the bumpers could be added dynamically? That would enable you to use the same bumper for multiple videos (decreasing download time for users who might watch more than one) and to update the bumpers whenever you wanted. You could change them seasonally, update them for special promotions, run different advertising slots, perform multivariate testing, or even target different bumpers to different users.
The trade-off, of course, is that if you dynamically add your bumpers, there’s a chance that a user in a given circumstance might not see the bumper. For example, if the main video feature was uploaded to YouTube, you’d have no way to control the playback. As always, you need to weigh up the pros and cons and make your choice.
HTML5 bumpers
If you wanted to dynamically add bumpers to your HTML5 video, how would you go about it? That was the question I found myself needing to answer for this particular client project.
My initial thought was to treat it just like an image slideshow. If I were building a slideshow that moved between images, I’d use CSS absolute positioning with z-index to stack the images up on top of each other in a pile, with the first image on top. To transition to the second image, I’d use JavaScript to fade the top image out, revealing the second image beneath it.
Now that video is just a native object in the DOM, just like an image, why not do the same? Stack the videos up with the opening bumper on top, listen for the video’s onended event, and fade it out to reveal the main feature behind. Good idea, right?
Wrong
Remember that this is the web. It’s never going to be that easy. The problem here is that many non-desktop devices use native, dedicated video players. Think about watching a video on a mobile phone – when you play the video, the phone often goes full-screen in its native player, leaving the web page behind. There’s no opportunity to fade or switch z-index, as the video isn’t being viewed in the page. Your page is left powerless. Powerless!
So what can we do? What can we control?
Those of us with particularly long memories might recall a time before CSS, when we’d have to use JavaScript to perform image rollovers. As CSS background images weren’t a practical reality, we would use lots of <img> elements, and perform a rollover by modifying the src attribute of the image.
Turns out, this old trick of modifying the source can help us out with video, too. In most cases, modifying the src attribute of a <video> element, or perhaps more likely the src attribute of a source element, will swap from one video to another.
Swappin’ it
Let’s take a deliberately simple example of a super-basic video tag:
<video src="mycat.webm" controls>no fallback coz i is lame, innit.</video>
We could very simply write a script to find all video tags and give them a new src to show our bumper.
<script>
var videos, i, l;
videos = document.getElementsByTagName('video');
for(i=0, l=videos.length; i<l; i++) {
videos[i].setAttribute('src', 'bumper-in.webm');
}
</script>
View the example in a browser with WebM support. You’ll see that the video is swapped out for the opening bumper. Great!
Beefing it up
Of course, we can’t just publish video in one format. In practical use, you need a <video> element with multiple <source> elements containing your different source formats.
<video controls>
<source src="mycat.mp4" type="video/mp4" />
<source src="mycat.webm" type="video/webm" />
<source src="mycat.ogv" type="video/ogg" />
</video>
This time, our script needs to loop through the sources, not the videos. We’ll use a regular expression replacement to swap out the file name while maintaining the correct file extension.
<script>
var sources, i, l, orig;
sources = document.getElementsByTagName('source');
for(i=0, l=sources.length; i<l; i++) {
orig = sources[i].getAttribute('src');
sources[i].setAttribute('src', orig.replace(/(w+).(w+)/, 'bumper-in.$2'));
// reload the video
sources[i].parentNode.load();
}
</script>
The difference this time is that when changing the src of a <source> we need to call the .load() method on the video to get it to acknowledge the change.
See the code in action, this time in a wider range of browsers.
But, my video!
I guess we should get the original video playing again. Keeping the same markup, we need to modify the script to do two things:
Store the original src in a data- attribute so we can access it later
Add an event listener so we can detect the end of the bumper playing, and load the original video back in
As we need to loop through the videos this time to add the event listener, I’ve moved the .load() call into that loop. It’s a bit more efficient to call it only once after modifying all the video’s sources.
<script>
var videos, sources, i, l, orig;
sources = document.getElementsByTagName('source');
for(i=0, l=sources.length; i<l; i++) {
orig = sources[i].getAttribute('src');
sources[i].setAttribute('data-orig', orig);
sources[i].setAttribute('src', orig.replace(/(w+).(w+)/, 'bumper-in.$2'));
}
videos = document.getElementsByTagName('video');
for(i=0, l=videos.length; i<l; i++) {
videos[i].load();
videos[i].addEventListener('ended', function(){
sources = this.getElementsByTagName('source');
for(i=0, l=sources.length; i<l; i++) {
orig = sources[i].getAttribute('data-orig');
if (orig) {
sources[i].setAttribute('src', orig);
}
sources[i].setAttribute('data-orig','');
}
this.load();
this.play();
});
}
</script>
Again, view the example to see the bumper play, followed by our spectacular main feature. (That’s my cat, Widget. His interests include sleeping and internet marketing.)
Tidying things up
The final thing to do is add our closing bumper after the main video has played. This involves the following changes:
We need to keep track of whether the src has been changed, so we only play the video if it’s changed. I’ve added the modified variable to track this, and it stops us getting into a situation where the video just loops forever.
Add an else to the event listener, for when the orig is false (so the main feature has been playing) to load in the end bumper. We also check that we’re not already playing the end bumper. Because looping.
<script>
var videos, sources, i, l, orig, current, modified;
sources = document.getElementsByTagName('source');
for(i=0, l=sources.length; i<l; i++) {
orig = sources[i].getAttribute('src');
sources[i].setAttribute('data-orig', orig);
sources[i].setAttribute('src', orig.replace(/(w+).(w+)/, 'bumper-in.$2'));
}
videos = document.getElementsByTagName('video');
for(i=0, l=videos.length; i<l; i++) {
videos[i].load();
modified = false;
videos[i].addEventListener('ended', function(){
sources = this.getElementsByTagName('source');
for(i=0, l=sources.length; i<l; i++) {
orig = sources[i].getAttribute('data-orig');
if (orig) {
sources[i].setAttribute('src', orig);
modified = true;
}else{
current = sources[i].getAttribute('src');
if (current.indexOf('bumper-out')==-1) {
sources[i].setAttribute('src', current.replace(/([w]+).(w+)/, 'bumper-out.$2'));
modified = true;
}else{
this.pause();
modified = false;
}
}
sources[i].setAttribute('data-orig','');
}
if (modified) {
this.load();
this.play();
}
});
}
</script>
Yo ho ho, that’s a lot of JavaScript. See it in action – you should get a bumper, the cat video, and an end bumper.
Of course, this code works fine for demonstrating the principle, but it’s very procedural. Nothing wrong with that, but to do something similar in production, you’d probably want to make the code more modular to ease maintainability. Besides, you may want to use a framework, rather than basic JavaScript.
The end credits
One really important principle here is that of progressive enhancement. If the browser doesn’t support JavaScript, the user won’t see your bumper, but they will get the main video. If the browser supports JavaScript but doesn’t allow you to modify the src (as was the case with older versions of iOS), the user won’t see your bumper, but they will get the main video.
If a search engine or social media bot grabs your page and looks for content, they won’t see your bumper, but they will get the main video – which is absolutely what you want.
This means that if the bumper is absolutely crucial, you may still need to cook it into the video. However, for many applications, running it dynamically can work quite well.
As always, it comes down to three things:
Measure your audience: know how people access your site
Test the solution: make sure it works for your audience
Plan for failure: it’s the web and that’s how things work ‘round these parts
But most of all play around with it, have fun and build something awesome. |
2012 |
Drew McLellan |
drewmclellan |
2012-12-01T00:00:00+00:00 |
https://24ways.org/2012/html5-video-bumpers/ |
code |
| 84 |
Responsive Responsive Design |
Now more than ever, we’re designing work meant to be viewed along a gradient of different experiences. Responsive web design offers us a way forward, finally allowing us to “design for the ebb and flow of things.”
With those two sentences, Ethan closed the article that introduced the web to responsive design. Since then, responsive design has taken the web by storm. Seemingly every day, some company is touting their new responsive redesign. Large brands such as Microsoft, Time and Disney are getting in on the action, blowing away the once common criticism that responsive design was a technique only fit for small blogs.
Certainly, this is a good thing. As Ethan and John Allsopp before him, were right to point out, the inherent flexibility of the web is a feature, not a bug. The web’s unique ability to be consumed and interacted with on any number of devices, with any number of input methods is something to be embraced.
But there’s one part of the web’s inherent flexibility that seems to be increasingly overlooked: the ability for the web to be interacted with on any number of networks, with a gradient of bandwidth constraints and latency costs, on devices with varying degrees of hardware power.
A few months back, Stephanie Rieger tweeted
“Shoot me now…responsive design has seemingly become confused with an opportunity to reduce performance rather than improve it.”
I would love to disagree, but unfortunately the evidence is damning. Consider the size and number of requests for four highly touted responsive sites that were launched this year:
74 requests, 1,511kb
114 requests, 1,200kb
99 requests, 1,298kb
105 requests, 5,942kb
And those numbers were for the small screen versions of each site!
These sites were praised for their visual design and responsive nature, and rightfully so. They’re very easy on the eyes and a lot of thought went into their appearance. But the numbers above tell an inconvenient truth: for all the time spent ensuring the visual design was airtight, seemingly very little (if any) attention was given to their performance.
It would be one thing if these were the exceptions, but unfortunately they’re not. Guy Podjarny, who has done a lot of research around responsive performance, discovered that 86% of the responsive sites he tested were either the same size or larger on the small screen as they were on the desktop.
The reality is that high performance should be a requirement on any web project, not an afterthought. Poor performance has been tied to a decrease in revenue, traffic, conversions, and overall user satisfaction. Case study after case study shows that improving performance, even marginally, will impact the bottom line. The situation is no different on mobile where 71% of people say they expect sites to load as quickly or faster on their phone when compared to the desktop.
The bottom line: performance is a fundamental component of the user experience.
So, given it’s extreme importance in the success of any web project, why is it that we’re seeing so many bloated responsive sites?
First, I adamantly disagree with the belief that poor performance is inherent to responsive design. That’s not a rule – it’s a cop-out. It’s an example of blaming the technique when we should be blaming the implementation. This argument also falls flat because it ignores the fact that the trend of fat sites is increasing on the web in general. While some responsive sites are the worst offenders, it’s hardly an issue resigned to one technique.
To fix the issue, we need to stop making excuses and start making improvements instead. Here, then, are some things we can do to start improving the state of responsive performance, and performance in general, right now.
Create a culture of performance
If you understand just how important performance is to the success of a project, the natural next step is to start creating a culture where high performance is a key consideration.
One of the things you can do is set a baseline. Determine the maximum size and number of requests you are going to allow, and don’t let a page go live if either of those numbers is exceeded. The BBC does this with its responsive mobile site.
A variation of that, which Steve Souders discussed in a recent podcast is to create a performance budget based on those numbers. Once you have that baseline set, if someone comes along and wants to add a something to the page, they have to make sure the page remains under budget. If it exceeds the budget, you have three options:
Optimize an existing feature or asset on the page
Remove an existing feature or asset from the page
Don’t add the new feature or asset
The idea here is that you make performance part of the process instead of something that may or may not get tacked on at the end.
Embrace the pain
This troubling trend of web bloat can be blamed in part on the lack of pain associated with poor performance. Most of us work on high-speed connections with low latency. When we fire up a 4Mb site, it doesn’t feel so bad.
When I tested the previously mentioned 5,942kb site on a 3G network, it took over 93 seconds to load. A minute and a half just staring at a white screen. Had anyone working on that project experienced that, you can bet the site wouldn’t have launched in that state.
Don’t just crunch numbers. Fire up your site on a slower network and see what it feels like to wait. If you don’t have access to a slow network, simulate one using a tool like Slowy, Throttle or the Network Conditioner found in Mac OS X 10.7.
Watch for low-hanging fruit
There are a bunch of general performance improvements that apply to any site (responsive or not) but often aren’t made. A great starting point is to refer to Yahoo!‘s list of rules.
Some of this might sound complicated or intimidating, but it doesn’t have to be. You can grab an .htaccess file from HTML 5 Boilerplate or use Sergey Chernyshev’s drop-in .htaccess file. You can use tools like SpriteMe to simplify the creation of sprites, and ImageOptim to compress images.
Just by implementing these simple optimizations you will achieve a noticeable improvement in terms of weight and page load time.
Be careful with images
The most common offender for poor responsive performance is downloading unnecessarily large images, or worse yet, multiple sizes of the same image.
For background images, simply being careful with where and how you include the image can ensure you don’t get caught in the trap of multiple background images being downloaded without being used. Don’t count on display:none to help. While it may hide elements from displaying on screen, those images will still be requested and downloaded.
Content images can be a little trickier. Whatever you do, don’t serve a large image that works on a large screen display to small screens. It’s wasteful, not only in terms of adding weight to the page, but also in wasting precious memory. Instead, use a tool like Adaptive Images or src.sencha.io to make sure only appropriately sized images are being downloaded.
The new <picture> element that has been so often discussed is another excellent solution if you’re feeling particularly future-oriented. A picture polyfill exists so that you can start using the element now without any worries about support.
Conditional loading
Don’t load any more than you absolutely need to. If a script isn’t needed at certain sizes, use the matchMedia polyfill to ensure it only loads when needed. Use eCSSential to do the same for unnecessary CSS files.
Last year on 24 ways, Jeremy Keith wrote an article about conditional loading of content in a responsive design based on the screen width. The technique was later refined by the Filament Group into what they dubbed the Ajax-Include Pattern. It’s a powerful and simple way to lighten the load on small screens as well as reduce clutter.
Go vanilla?
If you take a look at the HTTP Archive you’ll see that other than image size, JavaScript is the heaviest asset on a page weighing in at 215kb on average. It also boasts the fifth highest correlation to load time as well as the second highest correlation to render time.
Much of the weight can be attributed to our industry’s increasing reliance on frameworks. This is especially a concern on mobile devices. PPK recently exclaimed that current JavaScript libraries are just “too heavy for mobile”. “Research from Stoyan Stefanov on parse times supports this. On some Android and iOS devices, it can take as long as 200-300ms just to parse jQuery.
There’s nothing wrong about using a framework, but the problem is that they’ve become the default. Before dropping another framework or plugin into a page, we should stop to consider the value it adds and whether we could accomplish what we need to do using a combination of vanilla JavaScript and CSS instead. (This is a great example of a scenario where a performance budget could help.)
Start thinking beyond visual aesthetics
We love to tout the web’s universality when discussing the need for responsive design. But that universality is not limited simply to screen size. Networks and hardware capabilities must factor in as well.
The web is an incredibly dynamic and interactive medium, and designing for it demands that we consider more than just visual aesthetics. Let’s not forget to give those other qualities the attention they deserve. |
2012 |
Tim Kadlec |
timkadlec |
2012-12-05T00:00:00+00:00 |
https://24ways.org/2012/responsive-responsive-design/ |
design |
| 89 |
Direction, Distance and Destinations |
With all these new smartphones in the hands of lost and confused owners, we need a better way to represent distances and directions to destinations. The immediate examples that jump to mind are augmented reality apps which let you see another world through your phone’s camera. While this is interesting, there is a simpler way: letting people know how far away they are and if they are getting warmer or colder.
In the app world, you can easily tap into the phone’s array of sensors such as the GPS and compass, but what people rarely know is that you can do the same with HTML. The native versus web app debate will never subside, but at least we can show you how to replicate some of the functionality progressively in HTML and JavaScript.
In this tutorial, we’ll walk through how to create a simple webpage listing distances and directions of a few popular locations around the world. We’ll use JavaScript to access the device’s geolocation API and also attempt to access the compass to get a heading. Both of these APIs are documented, to be included in the W3C geolocation API specification, and can be used on both desktop and mobile devices today.
To get started, we need a list of a few locations around the world. I have chosen the highest mountain peak on each continent so you can see a diverse set of distances and directions.
Mountain
°Latitude
°Longitude
Kilimanjaro
-3.075833
37.353333
Vinson Massif
-78.525483
-85.617147
Puncak Jaya
-4.078889
137.158333
Everest
27.988056
86.925278
Elbrus
43.355
42.439167
Mount McKinley
63.0695
-151.0074
Aconcagua
-32.653431
-70.011083
Source: Wikipedia
We can put those into an HTML list to be styled and accessed by JavaScript to create some distance and directions calculations.
The next thing we need to do is check to see if the browser and operating system have geolocation support. To do this we test to see if the function is available or not using a single JavaScript if statement.
<script>
// If this is true, then the method is supported and we can try to access the location
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(geo_success, geo_error);
}
</script>
The if statement will be false if geolocation support is not present, and then it is up to you to do something else instead as a fallback. For this example, we’ll do nothing since our page should work as is and only get progressively better if more functionality is available.
The if statement will be true if there is support and therefore will continue inside the curly brackets to try to get the location. This should prompt the reader to accept or deny the request to get their location. If they say no, the second function callback is processed, in this case a function called geo_error; whereas if the location is available, it fires the geo_success function callback.
The function geo_error(){ } isn’t that exciting. You can handle this in any way you see fit. The success function is more interesting. We get a position object passed into the function which contains a series of exciting attributes, namely the latitude and longitude of the device’s current location.
function geo_success(position){
gLat = position.coords.latitude;
gLon = position.coords.longitude;
}
Now, in the variables gLat and gLon we have the user’s approximate geographical position. We can use this information to start to calculate some distances between where they are and all the destinations.
At the time of writing, you can also get position.coords.heading, but on Windows and iOS devices this returned NULL. In the future, if and when this is supported, this is also where you can easily grab the compass information.
Inside the geo_success function, we want to loop through the HTML to get all of the mountain peaks’ latitudes and longitudes and compute the distance.
...
$('.geo').each(function(){
// Get the lat/lon from the HTML
tLat = $(this).find('.lat').html()
tLon = $(this).find('.lon').html()
// compute the distances between the current location and this points location
dist = distance(tLat,tLon,gLat,gLon);
// set the return values into something useful
d = parseInt(dist[0]*10)/10;
a = parseFloat(dist[1]);
// display the value in the HTML and style the arrow
$(this).find('.distance').html(d+' km away');
$(this).find('.direction').css('-webkit-transform','rotate(-' + a + 'deg)');
// store the arc for later use if compass is available
$(this).attr('data-arc',a);
}
In the variable d we have the distance between the current location and the location of the mountain peak based on the Haversine Formula. The variable a is the arc, which has a value from 0 to 359.99. This will be useful later if we have compass support. Given these two values we have a distance and a heading to style the HTML.
The next thing we want to do is check to see if the device has a compass and then get access to the the current heading. As we’ll see, there are several ways to do this, some of which work on certain devices but not others. The W3C geolocation spec says that, along with the coordinates, there are several other attributes: accuracy; altitude; and heading. Heading is the direction to true north, which is different than magnetic north! WebKit and Windows return NULL for the heading value, but WebKit has an experimental method to fetch the heading. If you get into accessing these sensors, you’ll have to try to catch a few of these methods to finally get a value. Assuming you do, we can move on to the more interesting display opportunities.
In an ideal world, this would succeed and set a variable we’ll call compassHeading to get a value between 0 and 359.99 degrees. Now we know which direction north is, we also know the direction relative to north of the path to our destination, so we can can subtract the two values to get an arrow to display on the screen. But we’re not finished yet: we also need to get the device’s orientation (landscape or portrait) and subtract the correct amount from the angle for the arrow. Once we have a value, we can use CSS to rotate the arrow the correct number of degrees.
-webkit-transform: rotate(-180deg)
Not all devices support a standard way to access compass information, so in the meantime we need to use a work around. On iOS, you can use the experimental event method e.webkitCompassHeading. We want the compass to update in real time as the device is moved around, so we’ll put this inside an event listener.
window.addEventListener('deviceorientation', function(e) {
// Loop through all the locations on the page
$('.geo').each(function(){
// get the arc value from north we computed and stored earlier
destination_arc = parseInt($(this).attr('data-arc'))
compassHeading = e.webkitCompassHeading + window.orientation + destination_arc;
// find the arrow element and rotate it accordingly
$(this).find('.direction').css('-webkit-transform','rotate(-' + compassHeading + 'deg)');
}
}
As the device is rotated, the compass arrow will constantly be updated. If you want to see an example, you can have a look at this page which shows the distances to all the peaks on each continent.
With progressive enhancement, we slowly layer on additional functionality as we go. The reader will first see the list of locations with a latitude and longitude. If the device is capable and permissions allow, it will then compute the distance. If a compass is available, with the correct permissions it will then add the final layer which is direction.
You should consider this code a stub for your projects. If you are making a hyperlocal webpage with restaurant locations, for example, then consider adding these features. Knowing not only how far away a place is, but also the direction can be hugely important, and since the compass is always active, it acts as a guide to the location.
Future developments
Improvements to this could include setting a timer and recalling the navigator.geolocation.getCurrentPosition() function and updating the distances. I chose very distant mountains so kilometres made sense, but you can divide again by 1,000 to convert to metres if you are dealing with much nearer places. Walking or driving would change the distances so the ability to refresh would be important.
It is outside the scope of this article, but if you manage to get this HTML to work offline, then you can make a nice web app which sits on your devices’ homescreens and works even without an internet connection. This could be ideal for travellers in an unknown city looking for your destination. Just with offline storage, base64 encoding and data URIs, it is possible to embed plenty of design and functionality into a small offline webpage.
Now you know how to use JavaScript to look up a destination’s location and figure out the distance and direction – never get lost again. |
2012 |
Brian Suda |
briansuda |
2012-12-19T00:00:00+00:00 |
https://24ways.org/2012/direction-distance-and-destinations/ |
code |
| 91 |
Infinite Canvas: Moving Beyond the Page |
Remember Web 2.0? I do. In fact, that phrase neatly bifurcates my life on the internet. Pre-2.0, I was occupied by chatting on AOL and eventually by learning HTML so I could build sites on Geocities. Around 2002, however, I saw a WYSIWYG demo in Dreamweaver. The instructor was dragging boxes and images around a canvas. With a few clicks he was able to build a dynamic, single-page interface. Coming from the world of tables and inline HTML styles, I was stunned.
As I entered college the next year, the web was blossoming: broadband, Wi-Fi, mobile (proud PDA owner, right here), CSS, Ajax, Bloglines, Gmail and, soon, Google Maps. I was a technology fanatic and a hobbyist web developer. For me, the web had long been informational. It was now rapidly becoming something else, something more: sophisticated, presentational, actionable.
In 2003 we watched as the internet changed. The predominant theme of those early Web 2.0 years was the withering of Internet Explorer 6 and the triumph of web standards. Upon cresting that mountain, we looked around and collectively breathed the rarefied air of pristine HMTL and CSS, uncontaminated by toxic hacks and forks – only to immediately begin hurtling down the other side at what is, frankly, terrifying speed.
Ten years later, we are still riding that rocket. Our days (and nights) are spent cramming for exams on CSS3 and RWD and Sass and RESS. We are the proud, frazzled owners of tiny pocket computers that annihilate the best laptops we could have imagined, and the architects of websites that are no longer restricted to big screens nor even segregated by device. We dragoon our sites into working any time, anywhere. At this point, we can hardly ask the spec developers to slow down to allow us to catch our breath, nor should we. It is, without a doubt, a most wonderful time to be a web developer.
But despite the newfound luxury of rounded corners, gradients, embeddable fonts, low-level graphics APIs, and, glory be, shadows, the canyon between HTML and native appears to be as wide as ever. The improvements in HTML and CSS have, for the most part, been conveniences rather than fundamental shifts. What I’d like to do now, if you’ll allow me, is outline just a few of the remaining gaps that continue to separate web sites and applications from their native companions.
What I’d like for Christmas
There is one irritant which is the grandfather of them all, the one from which all others flow and have their being, and it is, simply, the page refresh. That’s right, the foundational principle of the web is our single greatest foe. To paraphrase a patron saint of designers everywhere, if you see a page refresh, we blew it.
The page refresh brings with it, of course, many noble and lovely benefits: addressability, for one; and pagination, for another. (See also caching, resource loading, and probably half a dozen others.) Still, those concerns can be answered (and arguably answered more compellingly) by replacing the weary page with the young and hearty document. Flash may be dead, but it has many lessons yet to bequeath.
Preparing a single document when the site loads allows us to engage the visitor in a smooth and engrossing experience. We have long known this, of course. Twitter was not the first to attempt, via JavaScript, to envelop the user in a single-page application, nor the first to abandon it. Our shared task is to move those technologies down the stack, to make them more primitive, so that the next Twitter can be built with the most basic combination of HTML and CSS rather than relying on complicated, slow, and unreliable scripted solutions.
So, let’s take a look at what we can do, right now, that we might have a better idea of where our current tools fall short.
A print magazine in HTML clothing
Like many others, I suspect, one of my earliest experiences with publishing was laying out newsletters and newspapers on a computer for print. If you’ve ever used InDesign or Quark or even Microsoft Publisher, you’ll remember reflowing content from page to page. The advent of the internet signaled, in many ways, the abandonment of that model. Articles were no longer constrained by the physical limitations of paper. In shedding our chains, however, it is arguable that we’ve lost something useful. We had a self-contained and complete package, a closed loop. It was a thing that could be handled and finished, and doing so provided a sense of accomplishment that our modern, infinitely scrolling, ever-fractal web of content has stolen.
For our purposes today, we will treat 24 ways as the online equivalent of that newspaper or magazine. A single year’s worth of articles could easily be considered an issue. Right now, navigating between articles means clicking on the article you’d like to view and being taken to that specific address via a page reload. If Drew wanted to, it wouldn’t be difficult to update the page in place (via JavaScript) and change the address (again via JavaScript with the History API) to reflect the new content found at the new location. But what if Drew wanted to do that without JavaScript? And what if he wanted the site to not merely load the content but actually whisk you along the page in a compelling and delightful way, à la the Mag+ demo we all saw a few years ago when the iPad was first introduced? Uh, no.
We’re all familiar with websites that have attempted to go beyond the page by weaving many chunks of content together into a large document and for good reason. There is tremendous appeal in opening and exploring the canvas beyond the edges of our screens.
In one rather straightforward example from last year, Mozilla contacted Full Stop to build a website promoting Aza Raskin’s proposal for a set of Creative Commons-style privacy icons. Like a lot of the sites we build (including our own), the amount of information we were presenting was minimal. In these instances, we encourage our clients to consider including everything on a single page. The result was a horizontally driven site that was, if not whimsical, at least clever and attractive to the intended audience. An experience that is taken for granted when using device-native technology is utterly, maddeningly impossible to replicate on the web without jumping through JavaScript hoops.
In another, more complex example, we again had the pleasure of working with Aza earlier this year, this time on a redesign of the Massive Health website. Our assignment was to design and build a site that communicated Massive’s commitment to modern personal health. The site had to be visually and interactively stunning while maintaining a usable and clear interface for the casual visitor. Our solution was to extend the infinite company logo into a ribbon that carried the visitor through the site narrative. It also meant we’d be asking the browser to accommodate something it was never designed to handle: a non-linear design. (Be sure to play around. There’s a lot going on under the hood. We were also this close to a ZUI, if WebKit didn’t freak out when pages were scaled beyond 10×.) Despite the apparent and deliberate design simplicity, the techniques necessary to implement it are anything but. From updating the URL to moving the visitor from section to section, we’re firmly in JavaScript territory. And that’s a shame.
What can we do?
We might not be able to specify these layouts in HTML and CSS just yet, but that doesn’t mean we can’t learn a few new tricks while we wait. Let’s see how close we can come to recreating the privacy icons design, the Massive design, or the Mag+ design without resorting to JavaScript.
A horizontally paginated site
The first thing we’re going to need is the concept of a page within our HTML document. Using plain old HTML and CSS, we can stack a series of <div>s sideways (with a little assist from our new friend, the viewport-width unit, not that he was strictly necessary). All we need to know is how many pages we have. (And, boy, wouldn’t it be nice to be able to know that without having to predetermine it or use JavaScript?)
.window {
overflow: hidden;
width: 100%;
}
.pages {
width: 200vw;
}
.page {
float: left;
overflow: hidden;
width: 100vw;
}
If you look carefully, you’ll see that the conceit we’ll use in the rest of the demos is in place. Despite the document containing multiple pages, only one is visible at any given time. This allows us to keep the user focused on the task (or content) at hand.
By the way, you’ll need to use a modern, WebKit-based browser for these demos. I recommend downloading the WebKit nightly builds, Chrome Canary, or being comfortable with setting flags in Chrome.
A horizontally paginated site, with transitions
Ah, here’s the rub. We have functional navigation, but precious few cues for the user. It’s not much good shoving the visitor around various parts of the document if they don’t get the pleasant whooshing experience of the journey. You might be thinking, what about that new CSS selector, target-something…? Well, my friend, you’re on the right track. Let’s test it. We’re going to need to use a bit of sleight of hand. While we’d like to simply offset the containing element by the number of pages we’re moving (like we did on Massive), CSS alone can’t give us that information, and that means we’re going to need to fake it by expanding and collapsing pages as you navigate. Here are the bits we’re going to need:
.page {
-webkit-transition: width 1s; // Naturally you're going to want to include all the relevant prefixes here
float: left;
left: 0;
overflow: hidden;
position: relative;
width: 100vw;
}
.page:not(:target) {
width: 0;
}
Ah, but we’re not fooling anyone with that trick. As soon as you move beyond a single page, the visitor’s disbelief comes tumbling down when the linear page transitions are unaffected by the distance the pages are allegedly traveling. And you may have already noticed an even more fatal flaw: I secretly linked you to the first page rather than the unadorned URL. If you visit the same page with no URL fragment, you get a blank screen. Sure, we could force a redirect with some server-side trickery, but that feels like cheating. Perhaps if we had the CSS4 subject selector we could apply styles to the parent based on the child being targeted by the URL. We might also need a few more abilities, like determining the total number of pages and having relative sibling selectors (e.g. nth-sibling), but we’d sure be a lot closer.
A horizontally paginated site, with transitions – no cheating
Well, what other cards can we play? How about the checkbox hack? Sure, it’s a garish trick, but it might be the best we can do today. Check it out.
label {
cursor: pointer;
}
input {
display: none;
}
input:not(:checked) + .page {
max-height: 100vh;
width: 0;
}
Finally, we can see the first page thanks to the state we are able to set on the appropriate radio button. Of course, now we don’t have URLs, so maybe this isn’t a winning plan after all. While our HTML and CSS toolkit may feel primitive at the moment, we certainly don’t want to sacrifice the addressability of the web. If there’s one bedrock principle, that’s it.
A horizontally paginated site, with transitions – no cheating and a gorgeous homepage
Gorgeous may not be the right word, but our little magazine is finally shaping up. Thanks to the CSS regions spec, we’ve got an exciting new power, the ability to begin an article in one place and bend it to our will. (Remember, your everyday browser isn’t going to work for these demos. Try the WebKit nightly build to see what we’re talking about.) As with the rest of the examples, we’re clearly abusing these features. Off-canvas layouts (you can thank Luke Wroblewski for the name) are simply not considered to be normal patterns… yet.
Here’s a quick look at what’s going on:
.excerpt-container {
float: left;
padding: 2em;
position: relative;
width: 100%;
}
.excerpt {
height: 16em;
}
.excerpt_name_article-1,
.page-1 .article-flow-region {
-webkit-flow-from: article-1;
}
.article-content_for_article-1 {
-webkit-flow-into: article-1;
}
The regions pattern is comprised of at least three components: a beginning; an ending; and a source. Using CSS, we’re able to define specific elements that should be available for the content to flow through. If magazine-style layouts are something you’re interested in learning more about (and you should be), be sure to check out the great work Adobe has been doing.
Looking forward, and backward
As designers, builders, and consumers of the web, we share a desire to see the usability and enjoyability of websites continue to rise. We are incredibly lucky to be working in a time when a three-month-old website can be laughably outdated. Our goal ought to be to improve upon both the weaknesses and the strengths of the web platform. We seek not only smoother transitions and larger canvases, but fine-grained addressability. Our URLs should point directly and unambiguously to specific content elements, be they pages, sections, paragraphs or words. Moreover, off-screen design patterns are essential to accommodating and empowering the multitude of devices we use to access the web. We should express the desire that interpage links take advantage of the CSS transitions which have been put to such good effect in every other aspect of our designs. Transitions aren’t just nice to have, they’re table stakes in the highly competitive world of native applications.
The tools and technologies we have right now allow us to create smart, beautiful, useful webpages. With a little help, we can begin removing the seams and sutures that bind the web to an earlier, less sophisticated generation. |
2012 |
Nathan Peretic |
nathanperetic |
2012-12-21T00:00:00+00:00 |
https://24ways.org/2012/infinite-canvas-moving-beyond-the-page/ |
code |
| 93 |
Design Systems |
The most important part of responsive web design is that, no matter what the viewport width, the content is accessible in an optimum display. The best responsive designs are those that allow you to go from one optimised display to another, but with the feeling that these experiences are part of a greater product whole.
Responsive design: where we’ve been going wrong
Responsive web design was a shock to my web designer system. Those of us who had already been designing sites for mobile probably had the biggest leap to make. We might have been detecting user agents in order to deliver a mobile-specific site, or using the slightly more familiar Bushido technique to deliver sites optimised for device type and viewport size, but either way our focus was on devices. A site was optimised for either a mobile phone or a desktop.
Responsive web design brought us back to pre-table layout fluid sites that expanded or contracted to fit the viewport. This was a big difference to get our heads around when we were so used to designing for fixed-width layouts. Suddenly, an element could be any width or, at least, we needed to consider its maximum and minimum widths. Pixel perfection, while pretty, became wholly unrealistic, and a whole load of designers who prided themselves in detailed and precise designs got a bit scared.
Hanging on to our previous processes and typical deliverables led us to continue to optimise our sites for particular devices and provide pixel-perfect mockups for those device widths.
With all this we were concentrating on devices, not content, deliverables and not process, and making assumptions about users and their devices based on nothing but the width of the viewport.
I don’t think this is a crime, I think it was inevitable.
We can be up to date with our principles and ideals, but it’s never as easy in practice. That’s why it’s more important than ever to share our successful techniques and processes. Let’s drag each other into modern web design.
Design systems: the principles
What are design systems?
A visual design system is built out of the core components of typography, layout, shape or form, and colour. When considering the design of a whole product, a design system should also include patterns in user flow, content strategy, copy, and tone of voice. These concepts, design decisions or rules, created around the core components are used consistently across your product to create a cohesive feel, whether it’s from one element to another, page to page, or viewport width to viewport width.
Responsive design is one of the most important considerations in the components of a design system. For each component, you must decide what will unite the design across the viewports to maintain that consistent feel, and what parts of the design will differentiate in order to provide a flexible and optimal experience for different viewport sizes.
Components you might keep the same across viewports
typeface
base unit
colour
shape/form
Components you might differentiate across viewports
grids
layout
font size
measure (line length)
leading (line height)
Content: it must always be the same
The focus of a design system is the optimum display of content. As Mark Boulton put it, designing “content out, not canvas in.” Chris Armstrong puts the emphasis on not designing for viewports but for content – “we need to build on what we do know: content.” In order to do this, we must share the same content across all devices and focus on how best to display and represent content through design system components.
The practical: core visual components
Typography first
When you work with a lot of text content, typography is the easiest way to set the visual tone of the design across all viewport widths. It’s likely that you’ll choose one or two typefaces to use across the whole system, but you might change the most legible font size, balanced with the most comfortable measure, as the viewport width changes.
Where typography meets layout
The unit on which you choose to base the grid and layout design, font sizes and leading could be based on the typeface, an optimal reading size, or something more arbitrary. Sometimes I’ll choose a unit based on multiples of ten because it makes the maths in the CSS easier. Tim Brown suggests trying a modular scale. Chris Armstrong suggests basing it on your ideal measure, or the width of a fixed item of content such as an ad unit.
Grids and layouts
Sensible grid design can be a flexible yet solid foundation for your design system layout component. But you must be wary in responsive design that a grid might not work across all widths: even four columns could make for very cramped content and one-word measures on smaller screens.
Maybe the grid columns are something you differentiate across widths, but you can keep the concept of the grid consistent. If the content has blocks in groups of three, you might decide on a three-column grid which folds down to one column for narrow viewports. If the grid focuses on the idea of symmetry and has a four-column grid on larger viewports, it might fold down to two columns for narrower viewports. These consistencies may seem subtle, not at all obvious to many except the designer, but it’s all these little constants and patterns across the whole of the design system that makes design decisions easier to make (as they adhere to the guiding concepts of your system), and give the product a uniform feel no matter what the device.
Shape or form
The shape or form components are concepts you already use in fixed-width web design for a strong, consistent look and feel.
Since CSS border-radius became widely supported by browsers, a lot of designs feature circle themes. These are very distinctive and can be used across viewport widths giving them the same united feel, even if they’re not used in the same way. This could also apply to border styles, consistent shadows and any number of decorative details and textures. These are the elements that make up the shape or form of a design system.
Colour
Colour is the most basic way to reinforce a brand and unite experiences across viewports. The same hex colour used system-wide is instantly recognisable, no matter what the viewport width.
The process
While using a design system isn’t necessarily attached to any particular process, it does lend itself to some process ideals.
Detaching design considerations from viewport widths
A design system allows you to focus separately on the components that make up the system, disconnecting the look and feel from the layout. This helps prevent us getting stuck in the rut of the Apple breakpoints (brilliantly coined by Simon Foster) of mobile, tablet and desktop. It also forces us to design for variation in viewport experiences side by side, not one after the other.
Design in the browser
I can’t start off designing in the browser – it just doesn’t seem to bring out my creative side (and I’m incredibly envious of you if you can; I just have to start on paper) – but static mock-ups aren’t the only alternative. Style guides and style tiles are perfect for expressing the concepts of your design system. Pattern libraries could also work well.
Mock-ups and breakpoints
At some point, whether it’s to test your system ideas, or because a client needs help visualising how your system might work, you may end up producing some static mock-ups. It’s not the end of the world, but you must ensure that these consider all the viewports, not just those of the iDevices, or even the devices currently on the market. You need to decide the breakpoints where the states of your design change. The blocks within your content will always have optimum points for their display (based on their hierarchy, density, width, or type of interaction) and so your breakpoints should be based around these points.
These are probably the ideal points at which to produce static mockups; treat them as snapshots. They’re not necessarily mock-ups, so much as a way of capturing how your design system would be interpreted when frozen at that particular viewport width.
The future
Creating design systems will give us the flexibility we need for working with the unknown devices of the future. It may be a change in process, but it shouldn’t be too much of a difference in thinking. The pioneers in responsive design have a hard job. Some of these problems may have already been solved in other technologies or industries, but it’s up to the pioneers to find those connections and help us formulate solutions and standards that will make responsive design the best it can possibly be. We need to keep experimenting and communicating, particularly in the area of design, as good user experiences are the true sign of whether our products are a success. |
2012 |
Laura Kalbag |
laurakalbag |
2012-12-12T00:00:00+00:00 |
https://24ways.org/2012/design-systems/ |
design |
| 95 |
Giving Content Priority with CSS3 Grid Layout |
Browser support for many of the modules that are part of CSS3 have enabled us to use CSS for many of the things we used to have to use images for. The rise of mobile browsers and the concept of responsive web design has given us a whole new way of looking at design for the web. However, when it comes to layout, we haven’t moved very far at all. We have talked for years about separating our content and source order from the presentation of that content, yet most of us have had to make decisions on source order in order to get a certain visual layout.
Owing to some interesting specifications making their way through the W3C process at the moment, though, there is hope of change on the horizon. In this article I’m going to look at one CSS module, the CSS3 grid layout module, that enables us to define a grid and place elements on to it. This article comprises a practical demonstration of the basics of grid layout, and also a discussion of one way in which we can start thinking of content in a more adaptive way.
Before we get started, it is important to note that, at the time of writing, these examples work only in Internet Explorer 10. CSS3 grid layout is a module created by Microsoft, and implemented using the -ms prefix in IE10. My examples will all use the -ms prefix, and not include other prefixes simply because this is such an early stage specification, and by the time there are implementations in other browsers there may be inconsistencies. The implementation I describe today may well change, but is also there for your feedback.
If you don’t have access to IE10, then one way to view and test these examples is by signing up for an account with Browserstack – the free trial would give you time to have a look. I have also included screenshots of all relevant stages in creating the examples.
What is CSS3 grid layout?
CSS3 grid layout aims to let developers divide up a design into a grid and place content on to that grid. Rather than trying to fabricate a grid from floats, you can declare an actual grid on a container element and then use that to position the elements inside. Most importantly, the source order of those elements does not matter.
Declaring a grid
We declare a grid using a new value for the display property: display: grid. As we are using the IE10 implementation here, we need to prefix that value: display: -ms-grid;.
Once we have declared our grid, we set up the columns and rows using the grid-columns and grid-rows properties.
.wrapper {
display: -ms-grid;
-ms-grid-columns: 200px 20px auto 20px 200px;
-ms-grid-rows: auto 1fr;
}
In the above example, I have declared a grid on the .wrapper element. I have used the grid-columns property to create a grid with a 200 pixel-wide column, a 20 pixel gutter, a flexible width auto column that will stretch to fill the available space, another 20 pixel-wide gutter and a final 200 pixel sidebar: a flexible width layout with two fixed width sidebars. Using the grid-rows property I have created two rows: the first is set to auto so it will stretch to fill whatever I put into it; the second row is set to 1fr, a new value used in grids that means one fraction unit. In this case, one fraction unit of the available space, effectively whatever space is left.
Positioning items on the grid
Now I have a simple grid, I can pop items on to it. If I have a <div> with a class of .main that I want to place into the second row, and the flexible column set to auto I would use the following CSS:
.content {
-ms-grid-column: 3;
-ms-grid-row: 2;
-ms-grid-row-span: 1;
}
If you are old-school, you may already have realised that we are essentially creating an HTML table-like layout structure using CSS. I found the concept of a table the most helpful way to think about the grid layout module when trying to work out how to place elements.
Creating grid systems
As soon as I started to play with CSS3 grid layout, I wanted to see if I could use it to replicate a flexible grid system like this fluid 16-column 960 grid system.
I started out by defining a grid on my wrapper element, using fractions to make this grid fluid.
.wrapper {
width: 90%;
margin: 0 auto 0 auto;
display: -ms-grid;
-ms-grid-columns: 1fr (4.25fr 1fr)[16];
-ms-grid-rows: (auto 20px)[24];
}
Like the 960 grid system I was using as an example, my grid starts with a gutter, followed by the first actual column, plus another gutter repeated sixteen times. What this means is that if I want to span two columns, as far as the grid layout module is concerned that is actually three columns: two wide columns, plus one gutter. So this needs to be accounted for when positioning items.
I created a CSS class for each positioning option: column position; rows position; and column span. For example:
.grid1 {-ms-grid-column: 2;} /* applying this class positions an item in the first column (the gutter is column 1) */
.grid2 {-ms-grid-column: 4;} /* 2nd column - gutter|column 1|gutter */
.grid3 {-ms-grid-column: 6;} /* 3rd column - gutter|column 1|gutter|column2|gutter */
.row1 {-ms-grid-row:1;}
.row2 {-ms-grid-row:3;}
.row3 {-ms-grid-row:5;}
.colspan1 {-ms-grid-column-span:1;}
.colspan2 {-ms-grid-column-span:3;}
.colspan3 {-ms-grid-column-span:5;}
I could then add multiple classes to each element to set the position on on the grid.
This then gives me a replica of the fluid grid using CSS3 grid layout. To see this working fire up IE10 and view Example 1.
This works, but…
This worked, but isn’t ideal. I considered not showing this stage of my experiment – however, I think it clearly shows how the grid layout module works and is a useful starting point. That said, it’s not an approach I would take in production. First, we have to add classes to our markup that tie an element to a position on the grid. This might not be too much of a problem if we are always going to maintain the sixteen-column grid, though, as I will show you that the real power of the grid layout module appears once you start to redefine the grid, using different grids based on media queries. If you drop to a six-column layout for small screens, positioning items into column 16 makes no sense any more.
Calculating grid position using LESS
As we’ve seen, if you want to use a grid with main columns and gutters, you have to take into account the spacing between columns as well as the actual columns. This means we have to do some calculating every time we place an item on the grid. In my example above I got around this by creating a CSS class for each position, allowing me to think in sixteen rather than thirty-two columns. But by using a CSS preprocessor, I can avoid using all the classes yet still think in main columns.
I’m using LESS for my example. My simple grid framework consists of one simple mixin.
.position(@column,@row,@colspan,@rowspan) {
-ms-grid-column: @column*2;
-ms-grid-row: @row*2-1;
-ms-grid-column-span: @colspan*2-1;
-ms-grid-row-span: @rowspan*2-1;
}
My mixin takes four parameters: column; row; colspan; and rowspan. So if I wanted to place an item on column four, row three, spanning two columns and one row, I would write the following CSS:
.box {
.position(4,3,2,1);
}
The mixin would return:
.box {
-ms-grid-column: 8;
-ms-grid-row: 5;
-ms-grid-column-span: 3;
-ms-grid-row-span: 1;
}
This saves me some typing and some maths. I could also add other prefixed values into my mixin as other browsers started to add support.
We can see this in action creating a new grid. Instead of adding multiple classes to each element, I can add one class; that class uses the mixin to create the position. I have also played around with row spans using my mixin and you can see we end up with a quite complicated arrangement of boxes. Have a look at example two in IE10. I’ve used the JavaScript LESS parser so that you can view the actual LESS that I use. Note that I have needed to escape the -ms prefixed properties with ~"" to get LESS to accept them.
This is looking better. I don’t have direct positioning information on each element in the markup, just a class name – I’ve used grid(x), but it could be something far more semantic. We can now take the example a step further and redefine the grid based on screen width.
Media queries and the grid
This example uses exactly the same markup as the previous example. However, we are now using media queries to detect screen width and redefine the grid using a different number of columns depending on that width.
I start out with a six-column grid, defining that on .wrapper, then setting where the different items sit on this grid:
.wrapper {
width: 90%;
margin: 0 auto 0 auto;
display: ~"-ms-grid"; /* escaped for the LESS parser */
-ms-grid-columns: ~"1fr (4.25fr 1fr)[6]"; /* escaped for the LESS parser */
-ms-grid-rows: ~"(auto 20px)[40]"; /* escaped for the LESS parser */
}
.grid1 { .position(1,1,1,1); }
.grid2 { .position(2,1,1,1); }
/* ... see example for all declarations ... */
Using media queries, I redefine the grid to nine columns when we hit a minimum width of 700 pixels.
@media only screen and (min-width: 700px) {
.wrapper {
-ms-grid-columns: ~"1fr (4.25fr 1fr)[9]";
-ms-grid-rows: ~"(auto 20px)[50]";
}
.grid1 { .position(1,1,1,1); }
.grid2 { .position(2,1,1,1); }
/* ... */
}
Finally, we redefine the grid for 960 pixels, back to the sixteen-column grid we started out with.
@media only screen and (min-width: 940px) {
.wrapper {
-ms-grid-columns:~" 1fr (4.25fr 1fr)[16]";
-ms-grid-rows:~" (auto 20px)[24]";
}
.grid1 { .position(1,1,1,1); }
.grid2 { .position(2,1,1,1); }
/* ... */
}
If you view example three in Internet Explorer 10 you can see how the items reflow to fit the window size. You can also see, looking at the final set of blocks, that source order doesn’t matter. You can pick up a block from anywhere and place it in any position on the grid.
Laying out a simple website
So far, like a toddler on Christmas Day, we’ve been playing with boxes rather than thinking about what might be in them. So let’s take a quick look at a more realistic layout, in order to see why the CSS3 grid layout module can be really useful. At this time of year, I am very excited to get out of storage my collection of odd nativity sets, prompting my family to suggest I might want to open a museum. Should I ever do so, I’ll need a website, and here is an example layout.
As I am using CSS3 grid layout, I can order my source in a logical manner. In this example my document is as follows, though these elements could be in any order I please:
<div class="wrapper">
<div class="welcome">
...
</div>
<article class="main">
...
</article>
<div class="info">
...
</div>
<div class="ads">
...
</div>
</div>
For wide viewports I can use grid layout to create a sidebar, with the important information about opening times on the top righ,t with the ads displayed below it. This creates the layout shown in the screenshot above.
@media only screen and (min-width: 940px) {
.wrapper {
-ms-grid-columns:~" 1fr (4.25fr 1fr)[16]";
-ms-grid-rows:~" (auto 20px)[24]";
}
.welcome {
.position(1,1,12,1);
padding: 0 5% 0 0;
}
.info {
.position(13,1,4,1);
border: 0;
padding:0;
}
.main {
.position(1,2,12,1);
padding: 0 5% 0 0;
}
.ads {
.position(13,2,4,1);
display: block;
margin-left: 0;
}
}
In a floated layout, a sidebar like this often ends up being placed under the main content at smaller screen widths. For my situation this is less than ideal. I want the important information about opening times to end up above the main article, and to push the ads below it. With grid layout I can easily achieve this at the smallest width .info ends up in row two and .ads in row five with the article between.
.wrapper {
display: ~"-ms-grid";
-ms-grid-columns: ~"1fr (4.25fr 1fr)[4]";
-ms-grid-rows: ~"(auto 20px)[40]";
}
.welcome {
.position(1,1,4,1);
}
.info {
.position(1,2,4,1);
border: 4px solid #fff;
padding: 10px;
}
.content {
.position(1,3,4,5);
}
.main {
.position(1,3,4,1);
}
.ads {
.position(1,4,4,1);
}
Finally, as an extra tweak I add in a breakpoint at 600 pixels and nest a second grid on the ads area, arranging those three images into a row when they sit below the article at a screen width wider than the very narrow mobile width but still too narrow to support a sidebar.
@media only screen and (min-width: 600px) {
.ads {
display: ~"-ms-grid";
-ms-grid-columns: ~"20px 1fr 20px 1fr 20px 1fr";
-ms-grid-rows: ~"1fr";
margin-left: -20px;
}
.ad:nth-child(1) {
.position(1,1,1,1);
}
.ad:nth-child(2) {
.position(2,1,1,1);
}
.ad:nth-child(3) {
.position(3,1,1,1);
}
}
View example four in Internet Explorer 10.
This is a very simple example to show how we can use CSS grid layout without needing to add a lot of classes to our document. It also demonstrates how we can mainpulate the content depending on the context in which the user is viewing it.
Layout, source order and the idea of content priority
CSS3 grid layout isn’t the only module that starts to move us away from the issue of visual layout being linked to source order. However, with good support in Internet Explorer 10, it is a nice way to start looking at how this might work. If you look at the grid layout module as something to be used in conjunction with the flexible box layout module and the very interesting CSS regions and exclusions specifications, we have, tantalizingly on the horizon, a powerful set of tools for layout.
I am particularly keen on the potential separation of source order from layout as it dovetails rather neatly into something I spend a lot of time thinking about. As a CMS developer, working on larger scale projects as well as our CMS product Perch, I am interested in how we better enable content editors to create content for the web. In particular, I search for better ways to help them create adaptive content; content that will work in a variety of contexts rather than being tied to one representation of that content.
If the concept of adaptive content is new to you, then Karen McGrane’s presentation Adapting Ourselves to Adaptive Content is the place to start. Karen talks about needing to think of content as chunks, that might be used in many different places, displayed differently depending on context.
I absolutely agree with Karen’s approach to content. We have always attempted to move content editors away from thinking about creating a page and previewing it on the desktop. However at some point content does need to be published as a page, or a collection of content if you prefer, and bits of that content have priority. Particularly in a small screen context, content gets linearized, we can only show so much at a time, and we need to make sure important content rises to the top. In the case of my example, I wanted to ensure that the address information was clearly visible without scrolling around too much. Dropping it with the entire sidebar to the bottom of the page would not have been so helpful, though neither would moving the whole sidebar to the top of the screen so a visitor had to scroll past advertising to get to the article.
If our layout is linked to our source order, then enabling the content editor to make decisions about priority is really hard. Only a system that can do some regeneration of the source order on the server-side – perhaps by way of multiple templates – can allow those kinds of decisions to be made. For larger systems this might be a possibility; for smaller ones, or when using an off-the-shelf CMS, it is less likely to be. Fortunately, any system that allows some form of custom field type can be used to pop a class on to an element, and with CSS grid layout that is all that is needed to be able to target that element and drop it into the right place when the content is viewed, be that on a desktop or a mobile device.
This approach can move us away from forcing editors to think visually. At the moment, I might have to explain to an editor that if a certain piece of content needs to come first when viewed on a mobile device, it needs to be placed in the sidebar area, tying it to a particular layout and design. I have to do this because we have to enforce fairly strict rules around source order to make the mechanics of the responsive design work. If I can instead advise an editor to flag important content as high priority in the CMS, then I can make decisions elsewhere as to how that is displayed, and we can maintain the visual hierarchy across all the different ways content might be rendered.
Why frustrate ourselves with specifications we can’t yet use in production?
The CSS3 grid layout specification is listed under the Exploring section of the list of current work of the CSS Working Group. While discussing a module at this stage might seem a bit pointless if we can’t use it in production work, there is a very real reason for doing so. If those of us who will ultimately be developing sites with these tools find out about them early enough, then we can start to give our feedback to the people responsible for the specification. There is information on the same page about how to get involved with the disussions.
So, if you have a bit of time this holiday season, why not have a play with the CSS3 grid layout module? I have outlined here some of my thoughts on how grid layout and other modules that separate layout from source order can be used in the work that I do. Likewise, wherever in the stack you work, playing with and thinking about new specifications means you can think about how you would use them to enhance your work. Spot a problem? Think that a change to the specification would improve things for a specific use case? Then you have something you could post to www-style to add to the discussion around this module.
All the examples are on CodePen so feel free to play around and fork them. |
2012 |
Rachel Andrew |
rachelandrew |
2012-12-18T00:00:00+00:00 |
https://24ways.org/2012/css3-grid-layout/ |
code |
| 96 |
Unwrapping the Wii U Browser |
The Wii U was released on 18 November 2012 in the US, and 30 November in the UK. It’s the first eighth generation home console, the first mainstream second-screen device, and it has some really impressive browser specs.
Consoles are not just for games now: they’re marketed as complete entertainment solutions. Internet connectivity and browser functionality have gone from a nice-to-have feature in game consoles to a selling point. In Nintendo’s case, they see it as a challenge to design an experience that’s better than browsing on a desktop.
Let’s make a browser that users can use on a daily basis, something that can really handle everything we’ve come to expect from a browser and do it more naturally.
Sasaki – Iwata Asks on Nintendo.com
With 11% of people using console browsers to visit websites, it’s important to consider these devices right from the start of projects. Browsing the web on a TV or handheld console is a very different experience to browsing on a desktop or a mobile phone, and has many usability implications.
Console browser testing
When I’m testing a console browser, one of the first things I do is run Niels Leenheer’s HTML5 test and Lea Verou’s CSS3 test. I use these benchmarks as a rough comparison of the standards each browser supports.
In October, IE9 came out for the Xbox 360, scoring 120/500 in the HTML5 test and 32% in the CSS3 test. The PS Vita also had an update to its browser in recent weeks, jumping from 58/500 to 243/500 in the HTML5 test, and 32% to 55% in the CSS3 test. Manufacturers have been stepping up their game, trying to make their browsing experiences better.
To give you an idea of how the Wii U currently compares to other devices, here are the test results of the other TV consoles I’ve tested. I’ve written more in-depth notes on TV and portable console browsers separately.
Year of releaseHTML5 scoreCSS3 scoreNotes
Wii U2012258/50048%Runs a Netfront browser (WebKit).
Wii200689/500Wouldn’t runRuns an Opera browser.
PS3200668/50038%Runs a Netfront browser (WebKit).
Xbox 3602005120/50032%A browser for the Xbox (IE9) was only recently released in October 2012. The Kinect provides voice and gesture support. There’s also SmartGlass, a second-screen app for platforms including Android and iOS.
The Wii U browser is Nintendo’s fifth attempt at a console browser. Based on these tests, it’s already looking promising.
Why console browsers used to suck
It takes a lot of system memory to run a good browser, and the problem of older consoles is that they don’t have much memory available. The original Nintendo DS needs a memory expansion pack just to run the browser, because the 4MB it has on board isn’t enough. I noticed that even on newer devices, some sites fail to load because the system runs out of memory.
The Wii came out six years ago with an Opera browser. Still being used today and with such low resources available, the latest browser features can’t reasonably be supported. There’s also pressure to add features such as tabs, and enable gamers to use the browser while a game is paused. Nintendo’s browser team have the advantage of higher specs to play with on their new console (1GB of memory dedicated to games, 1GB for the system), which makes it easier to support the latest standards. But it’s still a challenge to fit everything in.
…even though we have more memory, the amount of memory we can use for the browser is limited compared to a PC, so we’ve worked in ways that efficiently allocates the available memory per tab. To work on this, the experience working on the browser for the Nintendo 3DS system under a limited memory constraint helped us greatly.
Sasaki – Iwata Asks on Nintendo.com
In the box
The Wii U consists of a console unit which plugs into a TV (the first to support HD), and a wireless controller known as a gamepad. The gamepad is a lot bigger than typical TV console controllers, and it has a touchscreen on the front. The touchscreen is resistive, responding to pressure rather than electrical current. It’s intended to be used with a stylus (provided) but fingers can be used.
It might look a bit like one, but the gamepad isn’t a portable console designed to be taken out like the PS Vita. The gamepad can be used as a standalone screen with the TV switched off, as long as it’s within range of the console unit – it basically piggybacks off it.
It’s surprisingly lightweight for its size. It has a wealth of detectors including 9-axis control. Sensors wake the device from sleep when it’s picked up. There’s also a camera on the front, and a headphone port and speakers, with audio coming through both the TV and the gamepad giving a surround sound feel.
Up to six tabs can be opened at once, and the browser can be used while games are paused. There’s a really nice little feature here – the current game’s name is saved as a search option, so it’s really quick to look up contextual content such as walk-throughs.
Controls
Only one gamepad can be used to control the browser, but if there are Wiimotes connected, they can be used as pointers. This doesn’t let the user do anything except point (they each get a little hand icon with a number on it displayed on the screen), but it’s interesting that multiple people can be interacting with a site at once.
See a bigger version
The gamepad can also be used as a simple TV remote control, with basic functions such as bringing up the programme guide, adjusting volume and changing channel. I found the simplified interface much more usable than a full-featured remote control.
I’m used to scrolling being sluggish on consoles, but the Wii U feels almost as snappy as a desktop browser. Sites load considerably faster compared with others I’ve tested.
Tilt-scroll
Holding down ZL and ZR while tilting the screen activates an Instapaper-style tilt to scroll for going up and down the page quickly, useful for navigating very long pages.
Second screen
The TV mirrors most of what’s on the gamepad, although the TV screen just displays the contents of the browser window, while the gamepad displays the site along with the browser toolbar.
When the user with the gamepad is typing, the keyboard is hidden from the TV screen – there’s just a bit of text at the top indicating what’s happening on the gamepad.
Pressing X draws an on-screen curtain over the TV, hiding the content that’s on the gamepad from the TV. Pressing X again opens the curtains, revealing what’s on the gamepad. Holding the button down plays a drumroll before it’s released and the curtains are opened. I can imagine this being used in meetings as a fun presentation tool.
In a sense, browsing is a personal activity, but you get the idea that people will be coming and going through the room. When I first saw the curtain function, it made a huge impression on me. I walked around with it all over the company saying, “They’ve really come up with something amazing!”
Iwata – Iwata Asks on Nintendo.com
Text
Writing text
Unlike the capacitive screens on smartphones, the Wii U’s resistive screen needs to be pressed harder than you’re probably used to for registering a touch event. The gamepad screen is big, which makes it much easier to type on this device than other handheld consoles, even without the stylus. It’s still more fiddly than a full-sized keyboard though. When you’re designing forms, consider the extra difficulty console users experience.
Although TV screens are physically big, they are typically viewed from further away than desktop screens. This makes readability an issue, so Nintendo have provided not one, but four ways to zoom in and out:
Double-tapping on the screen.
Tapping the on-screen zoom icons in the browser toolbar.
Pressing the + and - buttons on the device.
Moving the right analogue stick up and down.
As well as making it easy to zoom in and out, Nintendo have done a few other things to improve the reading experience on the TV.
System font
One thing you’ll notice pretty quickly is that the browser lacks all the fonts we’re used to falling back to. Serif fonts are replaced with the system’s sans-serif font. I couldn’t get Typekit’s font loading method to work but Fontdeck, which works slightly differently, does display custom fonts.
The system font has been optimised for reading at a distance and is easy to distinguish because the lowercase e has a quirky little tilt.
Don’t lose :focus
Using the D-pad to navigate is similar to using a keyboard. Individual links are focused on, with a blue outline drawn around them.
The recently redesigned An Event Apart site is an example that improves the experience for keyboard and D-pad users. They’ve added a yellow background colour to links on focus. It feels nicer than the default blue outline on its own.
Media
This year, television overtook PCs as the primary way to watch online video content. TV is the natural environment for video, and 42% of online TVs in the US are connected to the internet via a console. Unfortunately, the <video> tag isn’t supported in most console browsers, and those that have Flash installed often have such an old version that the video won’t play.
I suspect this has been a big driver in getting console browsers to support web standards. The Wii U is designed with video content in mind. It doesn’t support Flash but it does support the HTML5 <video> tag.
Some video formats can’t be played, but those that are supported bring up an optimised interface with a custom scrub bar. This is where the device switches from mirroring the TV to being a second screen. The full-screen video is displayed on the TV, and the interface on the gamepad.
The really clever bit is that while a video is playing, the gamepad user can keep the video playing on the TV screen while searching for another video or browsing the web. This is the same for images too.
On the left, the video is being shown full-screen on the TV and gamepad. Only the gamepad gets the scrub bar. Clicking the slide up/down button (circled) lets the gamepad user browse the web while the video on the TV continues to play full-screen, as shown in the image on the right.
There’s support for SVG images, and they look great on a high-definition TV screen. However, there’s currently no way to save or download files.
Preparing for console users
I wasn’t expecting to be quite as impressed as I am by this browser. It’s encouraging to see console makers investing time into improving the experience as well as the standards support. In the same way there was an explosion in mobile browser use as the experience got better, I’m sure we’ll see the same with console browsers as the experience improves.
The value of detection
Consoles offer a range of inputs including gesture, voice and controller buttons. That means we have to think about more diverse methods of input than just touch and click.
This is where I could tell you to add some detection methods such as user agent string sniffing to target a different experience for console users. But the majority of the time, that really isn’t necessary. TV console browsers are getting a lot better at compensating for the living room environment, and they’re designed to work with websites that haven’t been optimised for this context.
Rather than tighten our grip on optimising experiences for every device out there, we’ve got to be pragmatic. There are so many new devices coming out every week, our designs need to be future-proof rather than fixed to a particular device in time.
Even fuzzy device detection isn’t reliable – the PS Vita declares itself to be mobile, a mobile device and a Kindle Fire tablet, while the two DS devices state they’re neither mobile nor mobile phones nor tablets, but computers. They’re weird outliers, but they’re still important devices to consider.
Thinking broadly about how our designs will be interacted with and viewed on a TV screen can help improve that experience for everyone. This is about accessibility. Considering how someone uses a site with a D-pad, we can improve the experience for keyboard users. When we think about colour contrast and text legibility on TV screens, we can apply that for anyone who reads content on the web. So why just offer this to the TV users?
Playing with the browser
…we want to prove to them through this Wii U Internet Browser that browsing itself can be an entertainment.
Iwata – Iwata Asks on Nintendo.com
Although I’m cautious about designing experiences for specific devices, it’s fun to experiment with the technology available. Nintendo have promised web developers access to the Wii U’s buttons and sensors. There’s already some JavaScript documentation, and a demo for you to try.
If you’re interested in making your own games, thanks to web standards, a lot of HTML5 games work already on the device. Matt Hackett wrote up his experience of testing the game he built, and he talks about some of features the browser lacks. There’s certainly an incentive there for console manufacturers to improve their HTML5 support so more games can be played in their browser.
What excites me about consoles is that it’s like looking at what might be available to us in future browsers. As well as thinking about how our sites work on small screens, we should also consider big screens. We’re already figuring out how images should work at different screen widths and connection speeds, but we’ve also got some interesting challenges ahead of us catering for second screen experiences and 3D-enabled devices.
So, this Christmas, if you’re huddled round the game console or a smart TV, give the browser in it a try. |
2012 |
Anna Debenham |
annadebenham |
2012-12-22T00:00:00+00:00 |
https://24ways.org/2012/unwrapping-the-wii-u-browser/ |
ux |