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Imagine you’re on a website, eagerly waiting for content to load, but all you see is a blank screen. It’s frustrating, isn’t it? The spinning loader, or spinner, is a UI element designed to combat this exact problem. It informs …

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Alan Dalton uses this, the International Day of Persons with Disabilities, to look back at where we’ve come from, to evaluate where we are, and to look forward to what’s coming next in the future of accessibility guidelines.

Happy United Nations International Day of Persons with Disabilities! The United Nations have chosen “Promoting the participation of persons with disabilities and their leadership: taking action on the 2030 Development Agenda” for this year’s observance. Let’s see how the World Wide Web Consortium (W3C)’s Web Accessibility Initiative (WAI) guidelines of accessibility past, present, and yet-to-come can help us to follow that goal, and make sure that the websites—and everything else!—that we create can include as many potential users as possible.

Guidelines of Accessibility Past

The W3C published the Web Content Accessibility Guidelines (WCAG) 1.0 on 5th May 1999, when most of us were playing Snake on our Nokia 3210s’ 1.5” monochrome screens…a very long time ago in technology terms. From the start, those guidelines proved enlightening for designers and developers who wanted to avoid excluding users from their websites. For example, we learned how to provide alternatives to audio and images, how to structure information, and how to help users to find the information they needed. However, those guidelines were specific to the web technologies of the time, resulting in limitations such as requiring developers to “use W3C technologies when they are available […]”. Also, those guidelines became outdated; I doubt that you, gentle reader, consult their technical documentation about “directly accessible applets” or “Writing for browsers that do not support FRAME” in your day-to-day work.

Guidelines of Accessibility Present

The W3C published the Web Content Accessibility Guidelines (WCAG) 2.0 on 11th December 2008, when most of us were admiring the iPhone 3G’s innovative “iPhone OS 2.0” software…a long time ago in technology terms. Unlike WCAG 1, these guidelines also applied to non-W3C technologies, such as PDF and Flash. These guidelines used legalese and future-proofed language, with terms such as “time-based media” and “programmatically determined”, and testable success criteria. This made these guidelines more difficult for designers and developers to grasp, but also enabled the guidelines to make their way into international standards (see EN 301 549 — Accessibility requirements suitable for public procurement of ICT products and services in Europe and ISO/IEC 40500:2012 Information technology — W3C Web Content Accessibility Guidelines (WCAG) 2.0) and even international law (see EU Directive 2016/2102 … on the accessibility of the websites and mobile applications of public sector bodies).

More importantly, these guidelines enabled designers and developers to create inclusive websites, at scale. For example, in the past 18 months:

• Intercom made their web Messenger accessible, achieving Level-AA conformance;
• Vimeo made accessibility updates to their video player to achieve Level-AA conformance;
• Stripe designed a new accessible colour system to conform with success criterion 1.4.3 (“Contrast (Minimum)”).

The updated Web Content Accessibility Guidelines (WCAG) 2.1 arrived on 5th June last year—almost a 10-year wait for a “.1” update!—and added 17 new success criteria to help bring the guidelines up to date. Those new criteria focused on people using mobile devices and touchscreens, people with low vision, and people with cognitive and learning disabilities.

(If you need to get up to speed with these guidelines, take 36 minutes to read “Web Content Accessibility Guidelines—for People Who Haven’t Read Them” and Web Content Accessibility Guidelines 2.1—for People Who Haven’t Read the Update.)

Guidelines of Accessibility Yet to Come

So, what’s next? Well, the W3C hope to release another minor update (WCAG 2.2) in November 2020. However, they also have a Task Force working on produce major new guidelines with wider scope (more people, more technologies) and fewer limitations (easier to understand, easier to use) in November 2022. These next guidelines will have a different name, because they will cover more than “Web” and “Content”. Andrew Kirkpatrick (Adobe’s Head of Accessibility) named the Task Force “Silver” (because the initials of “Accessibility Guidelines” form the symbol of the silver element).

The Silver Task Force want the next major accessibility guidelines to:

• take account of more disabilities;
• apply to more technologies than just the web, including virtual reality, augmented reality, voice assistants, and more;
• consider all the technologies that people use, including authoring tools, browsers, media players, assistive technologies (including screen readers and screen magnifiers), application software, and operating systems.

That’s quite a challenge, and so the more people who can help, the better. The Silver Task Force wanted an alternative to W3C’s Working Groups, which are made up of employees of organisations who are members of the W3C, and invited experts. So, they created a Silver Community Group to allow everyone to contribute towards this crucial work. If you want to join right now, for free, just create a W3C account.

Like all good designers, the Silver Task Force and Silver Community Group began by researching. They examined the problems that people have had when using, conforming to, and maintaining the existing accessibility guidelines, and then summarised that research. From there, the Silver Community Group drafted ambitious design principles and requirements. You can read about what the Silver Community Group are currently working on, and decide whether you would like to get involved now, or at a later stage.

Emphasise expertise over empathy

Remember that today’s theme is “Promoting the participation of persons with disabilities and their leadership: taking action on the 2030 Development Agenda”. (The United Nations’ 2030 Development Agenda is outside the scope of this article, but if you’re looking to be inspired, read Alessia Aquaro’s article on Public Digital’s blog about how digital government can contribute to the UN’s Sustainable Development Goals.) In line with this theme, if you don’t have a disability and you want to contribute to the Silver Community Group, resist the temptation to try to empathise with people with disabilities. Instead, take 21 minutes during this festive season to enjoy the brilliant Liz Jackson explaining how empathy reifies disability stigmas, and follow her advice.

Choose the right route

I think we can expect the next Accessibility Guidelines to make their way into international standards and international law, just like their predecessors. We can also expect successful companies to apply them at scale. If you contribute to developing those guidelines, you can help to make sure that as many people as possible will be able to access digital information and services, in an era when that access will be crucial to every aspect of people’s lives. As Cennydd Bowles explained in “Building Better Worlds”, “There is no such thing as the future. There are instead a near-infinity of potential futures. The road as-yet-untravelled stretches before us in abundant directions. We get to choose the route. There is no fate but what we make.”

About the author

Alan Dalton worked for Ireland’s National Disability Authority for 9½ years, mostly as Accessibility Development Advisor. That involved working closely with public sector bodies to make websites, services, and information more accessible to all users, including users with disabilities. Before that, he was a consultant and trainer for Software Paths Ltd. in Dublin. In his spare time, he maintains StrongPasswordGenerator.com to help people stay safe online, tweets, and takes photos.

More articles by Alan

Andy Clarke digs deep into snow to find ways flat design can be brought back to life in CSS with the use of techniques to create a sense of depth. Like spring after an everlasting winter, perhaps it’s time to let a different style of design flourish. What a relief.

A reaction to overly ornamental designs, flat design has been the dominant aesthetic for almost a decade. As gradients, patterns, shadows, and three-dimensional skeuomorphism fell out of fashion, designers embraced solid colours, square corners, and sharp edges.

Anti-skeuomorphism no doubt helped designers focus on feature design and usability without the distraction of what some might still see as flourishes. But, reducing both product and website designs to a bare minimum has had unfortunate repercussions. With little to differentiate their designs, products and websites have adopted a regrettable uniformity which makes it difficult to distinguish between them.

Still, all fashions fade eventually. I’m hopeful that with the styling tools we have today, we’ll move beyond flatness and add an extra dimension. Here are five CSS properties which will bring depth and richness to your designs.

To illustrate how you might use them, I’ve made this design for the 1961 Austin Seven 850, the small car which helped define the swinging sixties.

Transparency with alpha values

The simplest way to add transparency to a background colour, border, or text element is using alpha values in your colour styles. These values have been available in combination with RGB (red, green, blue) for years. In RGBA, decimal values below 1 make any colour progressively more transparent. 0 is the most transparent, 1 is the most opaque:

body {
  color: rgba(255, 0, 153, .75); 
}

Alpha values also combine with HSL (hue, saturation, lightness) to form HSLA:

body {
  color: hsla(0, 0, 100, .75);
}

Currently a Working Draft, CSS Color Module Level 4 enables alpha values in RGB and HSL without the additional “A”:

body {
  color: rgb(255, 0, 153, .75);
  /* color: hsl(0, 0, 100, .75); */
}

This new module also introduces hexadecimal colours with alpha values. In this new value, the last two digits represent the transparency level, with FF producing 100% opacity and 00 resulting in 100% transparency. For the 75% opacity in my design, I add BF to my white hexadecimal colour:

body {
  color: #ffffffbf;
}

Although there’s already wide support for hexadecimal, HSL, and RGB with alpha values in most modern browsers, the current version of Microsoft Edge for Windows has lagged behind. This situation will no doubt change when Microsoft move Edge to Chromium.

2. Use opacity

Using the opacity property specifies the amount of opacity of any element (obviously) which allows elements below them in the stacking order to be all or partially visible. A value of 0 is most transparent, whereas 1 is most opaque.

This property is especially useful for tinting the colour of elements by allowing any colour behind them to bleed through. The British Motor Corporation logo in the footer of my design is solid white, but reducing its opacity allows it to take on the colour of the body element behind:

[src*="footer"] {
  opacity: .75; 
}

You might otherwise choose to use opacity values as part of a CSS filter. 0% opacity is fully transparent, while 100% is fully opaque and appears as if no filter has been applied. Applying a CSS filter is straightforward. First, declare the filter-function and then a value in parentheses:

[src*="footer"] {
  filter: opacity(75%); 
}

3. Start blending

Almost universally, contemporary browsers support the same compositing tools we’ve used in graphic design and photo editing software for years. Blend modes including luminosity, multiply, overlay, and screen can easily and quickly add depth to a design. There are two types of blend-mode.

background-blend-mode defines how background layers blend with the background colour behind them, and with each other. My layered design requires three background images applied to the body element:

body {
  padding: 2rem;
  background-color: #ba0e37;
  background-image:
    url(body-1.png),
    url(body-2.png),
    url(body-3.png);
  background-origin: content-box;
  background-position: 0 0;
  background-repeat: no-repeat;
  background-size: contain;
}

You can apply different background-blend modes for each background image. Specify them in the same order as your background images and separate them with a comma:

body {
  background-blend-mode: multiply, soft-light, hard-light;
}

When I need to apply an alternative colour palette, there’s no need to export new background assets. I can achieve results simply by changing the background colour and these background-blend modes.

Sadly, there’s not yet support for blending modes in Edge, so provide an alternative background image for that browser:

@supports not (background-blend-mode: normal) {
  body {
    background-image: url(ihatetimvandamme.png); 
  }
}

mix-blend-mode, on the other hand, defines how an element’s content should blend with its ancestors.

To blend my Mini image with the background colours and images on the body, I add a value of hard-light, plus a filter which converts my full-colour picture to greyscale:

[src*="figure"] {
  filter: grayscale(100%);
  mix-blend-mode: hard-light; 
}

You can also use mix-blend-mode to add depth to text elements, like this headline and large footer paragraph in a green and yellow version of my design:

.theme-green h1,
.theme-green footer p:last-of-type {
  color: #f8Ef1c;
  mix-blend-mode: difference;
}

4. Overlap with CSS Grid

Whereas old-fashioned layout methods reinforced a rigid structure on website designs, CSS Grid opens up the possibility to layer elements without positioning or resorting to margin hacks. The HTML for my design is semantic and simple:

<body>

<p>You’ve never seen a car like it</p>

<h1><em>1961:</em> small car of the year</h1>

<figure>
  <img src="figure.png" alt="Austin Seven 850">
  <figcaption>
    <ul>
      <li>Austin Super Seven</li>
      <li>Morris Super Mini-Minor</li>
      <li>Austin Seven Cooper</li>
      <li>Morris Mini-Cooper</li>
    </ul>
  <figcaption>
</figure>

<footer>
  <p>Today’s car is a Mini</p>
  <p>Austin Seven 850</p>
  <img src="footer.png" alt="Austin Seven 850">
<footer>

</body>

I begin by applying a three-column symmetrical grid to the body element:

@media screen and (min-width : 48em) {

  body {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr; 
  }

}

Then, I place my elements onto that grid using line numbers:

body > p {
  grid-column: 1 / -1; 
}

h1 {
  grid-column: 1 / 3; 
}

figure {
  grid-column: 1 / -1; 
}

footer {
  display: contents; 
}

footer div {
  grid-column: 1 / 3; 
}  

[src*="footer"] {
  grid-column: 3 / -1;
  align-self: end; 
}

As sub-grid has yet to see wide adoption, I apply a second grid to my figure element, so I may place my image and figcaption:

figure {
  display: grid;
  grid-template-columns: 1fr 3fr; 
}

figcaption {
  grid-column: 1; 
}

[src*="figure"] {
  grid-column: 2; 
}

Previewing the result in a browser shows me the energy associated with driving this little car is missing. To add movement to my design, I change the image’s grid-column values so it occupies the same space as my caption:

figcaption {
  grid-column: 1;
  grid-row: 3; 
}

[src*="figure"] {
  grid-column: 1 / -1; 
  grid-row: 3;
  padding-left: 5vw; 
}

5. Stack with z-index

In geometry, the x axis represents horizontal, the y axis represents vertical. In CSS, the z axis represents depth. Z-index values can be either negative or positive and the element with the highest value appears closest to a viewer, regardless of its position in the flow. If you give more than one element the same z-index value, the one which comes last in source order will appear on top.

It’s important to remember that z-index is only applied to elements which have their position property set to either relative or absolute. Without positioning, there is no stacking. However, z-index can be used on elements placed onto a grid.

As the previous figure image and figcaption occupy the same grid columns and row, I apply a higher z-index value to my caption to bring it closer to the viewer, despite it appearing before the picture in the flow of my content:

figcaption {
  grid-column: 1;
  grid-row: 3;
  z-index: 2; 
}

[src*="figure"] {
  grid-column: 1 / -1; 
  grid-row: 3;
  z-index: 1; 
}

Z’s not dead baby, Z’s not dead

While I’m not advocating a return to the worst excesses of skeuomorphism, I hope product and website designers will realise the value of a more vibrant approach to design; one which appreciates how design can distinguish a brand from its competition.

I’m incredibly grateful to Drew and his team of volunteers for inviting me to write for this incredible publication every year for the past fifteen years. As I closed my first article here on this day all those years ago, “Have a great holiday season!” Z’s still not dead baby, Z’s still not dead.

About the author

Andy Clarke is one of the world’s best-known website designers, consultant, speaker, and writer on art direction and design for products and websites. Andy founded Stuff & Nonsense in 1998 and for 20 years has helped companies big and small to improve their website and product designs. Andy’s the author of four web design books including ‘Transcending CSS,’ ‘Hardboiled Web Design’ and ‘Art Direction for the Web’. He really, really loves gorillas.

More articles by Andy

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Montreal : National Film Board of Canada, 2008

Montreal : National Film Board of Canada, 2020

Montreal : National Film Board of Canada, 2016