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Adrian Roselli
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All Posts Tagged: html

Web Turns 35, Seems Popular

The world wide web has officially lasted 35 consecutive years, which means it’s catching up to its parent, the Internet, which itself is bearing down on 55. That’s an important distinction. The Internet is not the web; it is the foundation on which the web was born. Prior Years For…

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Tags: browser, html, W3C, WAI

Check-All / Expand-All Controls

Controls that can operate other controls in bulk are not new. One common example is a single checkbox that allows you to check or uncheck a group of checkboxes. Another example is a single button that lets you expand or collapse a set of disclosure widgets. When the user operates…

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Tags: html, standards, UX

Techniques to Break Words

Photo by studio tdes. Used under CC BY 2.0 Deed. Image cropped and contrast enhanced. A few days ago Benjy Stanton asked about breaking long words in tables. I offered a suggestion, which may or may not have worked. I never asked. My failure to follow up aside, it reminded…

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Tags: css, design, html

Using abbr Element with title Attribute

How the <abbr> element is defined and exposed, along with the title attribute: § 4.5.9 The abbr element from WHATWG. ARIA in HTML entry on <abbr> notes it has no implicit role and naming is prohibited. Which is probably why Core Accessibility API Mappings 1.2 does not list it. HTML…

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Tags: accessibility, html, standards

Embed Slides, YouTube Videos, and More

There are plenty of use cases for embedding third-party content on a site, as well as local content that may not be in HTML. Perhaps you gave a talk and want to share your slides. Sometimes you want to reference a video that exists only on YouTube. Maybe you have…

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Tags: html, pattern, usability, UX

AD Support in HTML Video

This post supplements Browser Video Players Review. There I wade into the de facto accessibility of the <video> element based on the default video players provided by browsers. The results of my testing here update the tables in that post. One of the primary challenges of using the browsers’ default…

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Tags: accessibility, browser, css, html, mobile, standards, usability, W3C, whatwg

Baseline Does Not Really Cover Baseline Support

Yeah, that’s not exactly a helpful title. The relatively new Web Platform Baseline offering does not track browser support for accessibility features built into the web platform. If you need to understand whether browsers support accessibility features as your own base level set of requirements, for legal or other compliance…

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Tags: accessibility, browser, Chrome, Firefox, Google, html, Safari, standards

Media Queries in HTML Video

Before you get too far into this post, maybe read Browser Video Players Review. There I wade into the accessibility of the <video> element based on the video players browsers provide. Then maybe read Scott Jehl’s How to Use Responsive HTML Video (…and Audio!). I am leaning on support in…

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Tags: accessibility, browser, css, html, mobile, standards, usability, W3C, whatwg

Web Development Advent Calendars for 2023

Generated by Midjourney using the prompt “a Pagan advent calendar for Christmas, made of natural wood.” It seemed more appropriate for the season than the neon synthwave version (which I want to hire someone to make). Web developers around the world have for years given a nod to Saturnalia solstice…

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Tags: accessibility, css, design, html, internet, standards, UX

Øredev 2023: Under-Engineered Patterns

Download a 2.6MB tagged PDF of my slides or try the embedded view if your browser displays PDF inline. I was invited Malmö, Sweden to present two talks at Øredev. Well, they asked me to do one but then suggested that hey, since I’m already there and stuff, how about…

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Tags: accessibility, browser, css, html, slides, speaking, usability

Don’t Turn a Table into an ARIA Grid Just for a Clickable Row

Again, title says it all. However, there is an equally bad opposite approach you might be tempted to use, so let me clarify: Don’t use ARIA grid roles simply to make rows clickable in a table, and Don’t put click handlers on table rows (<tr>s) to make them clickable. Step…

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Tags: accessibility, ARIA, html, tables, usability

Splitting within Selects

The native HTML <select> is renowned for its styling limitations. Even with control over the closed state and trigger appearance, the options themselves are still defined primarily by the browser and the OS. While I think this is generally fine (preferred, even), the <selectlist> (nee <selectmenu>) hopes to change that.…

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Tags: accessibility, browser, Chrome, Firefox, html, Safari, standards, usability, whatwg