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Adrian Roselli
Computer Vision Virtualization Intelligent Agent RTFM

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Tweaking Text Level Styles

It’s a bit of a pain to pepper updates within the sections of the post, so just scroll down to the latest update and work your way back up. Considering how much I charge for this site, I am hoping my readers will accept the extra effort. This post is…

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Tags: accessibility, css, html, pattern, standards, usability, UX, WHCM

Web Development Advent Calendars for 2017

The chocolate tasted like sugared wax. Yet it was still less offensive than the typeface. For a few years now web developers around the world have celebrated Saturnalia Christmas with advent calendars covering topics related to the web. I expect you will recognize some of these from prior years. I…

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

OS: High Contrast versus Inverted Colors

Low resolution screen shots combined to show the same page as seen using Windows High Contrast Mode and macOS Invert Colors settings. There are different ways to make a web page more easy to read, but there are two options that come directly from the operating system that many developers…

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Tags: accessibility, Apple, Microsoft, WHCM

Slides: Inclusive Usability Testing — a11yTOCamp

I have uploaded my slides from a11yTOCamp to SlideShare. If the embed below does not work, visit them directly. There were a lot of great talks yesterday, though I only tweeted from a couple of them (and skipped one altogether). Watching

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Tags: accessibility, internet, slides, usability, UX

Slides from Girl Develop It Buffalo

I gave a brief presentation to Girl Develop It (the Buffalo Chapter) tonight. The slides are at SlideShare and embedded below.

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Tags: accessibility, slides, speaking, standards, usability, UX

Feature Request for Firefox Grid Inspector: Source Order

This post is both a feature request and an opportunity to share my thoughts in a format I find easier to use than a Bugzilla report. And Jen Simmons said I could do it as a blog post. So there. Firefox Grid Inspector I am a big fan of the…

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Tags: accessibility, browser, css, Firefox, usability, WCAG

A Responsive Accessible Table

Painfully slow demonstration of the example table resizing and different media queries kicking in. After writing (again) that it is ok to use tables, and after providing quick examples of responsive tables, I received questions about why I used some of the code I did. I am going to attempt…

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Tags: accessibility, ARIA, css, design, html, mobile, pattern, print, standards, tables, usability, UX, WHCM

Hey, It’s Still OK to Use Tables

Baby Boomerangutuang, one of the Tick’s students. He was just shouting It’s OK to play with dolls! Consider this post to be the sequel to my 2012 post It’s OK to Use Tables. Here I will go into bit more detail based on the state of accessible efforts I see…

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Tags: accessibility, ARIA, html, pattern, standards, tables, usability, UX

Don’t Use ARIA Menu Roles for Site Nav

Once again, the advice is in the title of the post. But I will ramble anyway since you scrolled this far. First run with the advice, and then review some background on ARIA and how navigation and menu items are defined. This way you can tap out quickly when it…

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Tags: accessibility, ARIA, ARIAbuse, html, standards, usability

Avoid Emoji as Class Names

The title of this post is not broad enough. Avoid emoji as any identifier, whether as strings in your script, IDs on your elements, classes for your CSS, and so on. As soon as you start using emoji, you are blocking some users from being able to understand or use…

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Tags: accessibility, css, standards, usability

Slides from A11yTOConf

Before you wade into the slides, please note that all the code / accessibility advice in these slides is wrong. They are just examples. Do not copy them. If the embed does not work, view it at SlideShare. The t-shirt I was wearing may have been more popular than my…

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Tags: accessibility, slides, speaking

Playback Speed in Default Video Players

One of the most trafficked posts on my site is not about web development at all: Changing YouTube Playback Speed While the ability to control playback speed has real value from an accessibility and usability perspective, mostly I was just sharing something which brings me a ton of value because…

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Tags: accessibility, browser, video, YouTube