Not everyone can see the images you post online. They may have vision problems, they may have a slow connection, or they might be using a text-only browser. How can we let them know what the image shows? The answer is alt text. In HTML we can add a snippet of text to aid accessibility. For example <img src="monalisa.jpg" alt="A painting of the Mona Lisa."> Most social networks will let users add alt text to help describe their images. Brilliant! But... People don't always add alt text when…
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How would you read this sentence out aloud? "In Hamlet, Act Ⅳ, Scene Ⅸ..." Most people with a grasp of the interplay between English and Latin would say "In Hamlet, Act four, scene nine". And they'd be right! But screen-readers - computer programs which convert text into speech - often get this wrong. Why? Well, because I didn't just type "Uppercase Letter i, Uppercase Letter v". Instead, I used the Unicode symbol for the Roman numeral 4 - Ⅳ. And, it turns out, lots of screen-readers have …
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Every day is a school day. I'd recently seen a post about highlighting images without alt text. That got me thinking. Is it possible to style alt text? Yes. Yes it is. And it's pretty simple. Well, OK, it's CSS, so simple is a relative term! Let's take a broken image like <img src="http://example.com/bigfoot.jpg" alt="The best quality photo of bigfoot!" /> There are two slightly different ways to style the text. The simplest way is to give the image some CSS relating to its font, colour,…
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Because I don't trust Alan, the Hyperprat who now runs Twitter, I decided to download my Twitter archive before setting my account to dormant. About a decade ago, I wrote about how the Twitter archive works and where it is deficient. Things have got better, but there are still annoying limitations. For example, Hannah Kolbeck - founder of the Alt Text Reminder Bot recently pointed out that there's no alt text in the archives. Here's a snippet of Twitter's JSON for an image I posted: …
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About 2.5 years ago I proposed a small accessibility improvement to WordPress. It has taken a bit longer than I'd hoped but, as of WordPress 6.1 it has been merged! Now, if you're using the Classic editor, you'll get a larger and resizeable box for entering alt text. Because the text entry uses <textarea> most browsers will also show any spelling errors. Good spelling is essential for people who use text-to-speech to read out alt text. Huge thanks to the WordPress team for doing all the…
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(You may already know this, but I didn't. Every day is a school day.) HTML has the concept of the lang attribute. It allows you to say that a specific element contains text in a specific human language. For example, this page starts with: <html lang="en-GB"> That says the entire page is written in English, with the sub-type of Great Britain. This means your browser might offer to translate the page, if that isn't a language you can read. Or it might read the page aloud in a …
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Back in 2017, I noticed that the UK Post Office was doing very dodgy things with their alt text. Lots of their pages had this snippet of code: Rather than add properly accessible alt text, a developer added placeholder Latin text. Being a good webizen, I tried to report this. Terence Eden is on Mastodon@edentHi @PostOffice,Why is your website's alt text written in Latin? I don't think that is very accessible.shkspr.mobi/blog/2017/11/n… pic.x.com/9fqyq92p9g❤️ 12💬 0♻️ 212:00 - Mon 13 Novembe…
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There's an HTML element called <time>. It is a semantic element. That means robots can read and understand it. For example, if my code says: <p> The concert is <time datetime="2020-12-24">tomorrow</time> </p> Then the computer knows the specific date I'm talking about. A browser could offer to add the event to your calendar, or a search engine could find events which are happening on a specific date. Nifty! Problems in the wild The problem comes when people use abbreviations which may…
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Dark Mode is the new cool. Apps which automatically switch to an eye-friendly palette when lighting conditions are poor. Nifty! Most of the time, it's as simple as making the text a lightish colour, and the background a darkish colour. But all that fails when you use transparencies in images. Here's a quick example. Using the GitHub app in dark mode, I visited a repo which used a transparent image as an illustration: Yikes! I can't read most of that text, even if I whack up the brightness…
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In order to provide a video playback UI, WordPress uses the excellent MediaElement library. Recently, I discovered a slightly annoying flaw - I couldn't see the play button! Here's a screenshot of the video UI. In the middle of this screenshot is a white play button. I have trouble seeing it, because the video's background colour is predominantly white. The issue is with the mejs-controls.svg - the graphic which contains the interface controls. I think it could be made more accessible…
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My mate, the accessibility specialist Léonie Watson, has this to say about how we improve the world, piece-by-piece: Accessibility doesn't have to be perfect, it just has to be a little bit better than yesterday. Source: Twitter Damn straight! One of the best ways we can make tomorrow slightly better than today is by making small changes which make it easier for people to do the right thing. With that in mind, I've proposed a small change to the default behaviour in WordPress's media UI. …
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Apple's attitude to usability is... complex. The general attitude of "you're holding it wrong" seems to be prevalent across all their products. I like having a large mouse cursor. I find it easier to see on my large monitor, especially when sat at a safe distance. But, if I use a large cursor - I can't see the tool-tips underneath it. Annoyingly, Apple don't include the larger cursor sizes when taking a screenshot. So you get the joy of me pointing a camera at my screen like some kind of…
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