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Adrian Roselli
Decentralized Distrbuted Ledger State ISO

All Posts Tagged: Web

Blue Beanie Day

Image showing the pixel-art image of Jeffrey Zeldman in his iconic blue beanie (top left) simulating (clockwise) protanopia, deuteranopia, and tritanopia. Via CVSimulator app. Blue Beanie Day, or for about 0.05% of the population with tritanopia/tritanomaly, Teal Beanie Day! On Sunday, November 30, web designers and developers across the globe…

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Tags: accessibility, ARIA, standards, W3C, WAI, WCAG

Don’t Use Tabindex Greater than 0

Animated GIF Animated GIF showing the tab order on a page using the default Re-CAPTCHA, which sets a tabindex, forcing a keyboard user through six tab-stops to get to the Skip to content link. Tabindex had the potential to be a useful attribute. A developer could set the order in…

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Tags: accessibility, html, standards, usability, UX, W3C

WordCamp Toronto Slides: Selfish Accessibility

As promised, slides from my talk this morning at WordCamp Toronto: I have also embedded the video: Ego-Building Tweets I like audience feedback, moreso when it’s positive. I’ve also added some general tweets about the accessibility track. Starting the day with "Selfish Accessibility" #A11Y #WCTO pic.twitter.com/5RoRFSyg7r— Alicia Jarvis (@AJarvis728) November…

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Tags: accessibility, ARIA, html, slides, speaking, standards, W3C, WAI, WCAG

Learn to Do It Yourself

Often when I identify a valid technical (typically accessibility) issue with a site, tool, or library and get a response of just make a pull request, I am thrown into an apoplectic fit for which I have to apologize to my co-workers (or people at the random coffee shop or…

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Tags: accessibility, rant, standards

Linear Gradient Problems in Chrome

Detail of the effect I wanted to re-create with a linear gradient — a gray column, a white narrow gutter, a black vertical line, and the rest as white. I’m going to tell you up front that I don’t have a fix for the issue I am raising, though there…

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Tags: browser, Chrome, css, design, html, rant, standards

HTML5 Is Now a W3C Recommendation

I was already pretty excited when I read on the W3C Accessibility Task Force mailing list that the formal objection against longdesc was overruled. But then this — HTML5 is a wrap. I’ve seen some movement on the Twitters (and the W3C HTML Working Group mailing list) over the last…

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Tags: html, standards, W3C

Speaking at WordCamp Toronto 2014

Cool Schedule for WordCampTO, even if it does include @aardrian http://t.co/uo9o2aOiOM— Karl Groves (@karlgroves) October 23, 2014 On Saturday, November 15 I will be kicking off WordCamp Toronto with my talk “Selfish Accessibility.” In case you haven’t been following my blog, I use the talk to make the case that…

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Tags: accessibility, speaking, standards

NAGW Slides: Responsive Web Design Primer

I just finished a webinar for the National Association of Government Web Professionals where I provided an overview of responsive design. I always struggle when I cannot see the audience, but as always my ego carries me through to the end. The slides are embedded here for any and all…

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Tags: analytics, css, design, html, mobile, slides, speaking, usability, UX

CDC Ebola Response on Twitter Excludes Blind

This is one of the images tweeted by the CDC. The text contrast is 4.53:1, so it barely passes for large text. At this scaled-down size, however, the question text would fail a contrast test for accessibility. In the United States, the Centers for Disease Control (CDC) is (or at…

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Tags: accessibility, rant, social media, standards, Twitter, usability, UX

UX Singapore Slides: Selfish Accessibility

Photo of me speaking, fighting the sun, provided by Camilla Choo. Original photo on Twitter. In a departure from the other times I have given this talk, I gutted all the slides with code samples as well as the slides on testing (although I did keep them handy and use…

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Tags: accessibility, design, slides, speaking, standards, usability, UX, WAI, WCAG

Accessibility Camp Toronto Slides: Selfish Accessibility

I’ve updated this post to include the video from the live stream, some links, and a few photos. Selfish Accessibility: a11y Camp Toronto 2014 Video There was a live stream throughout the day, which was broken into a morning video and afternoon video. I’ve embedded the morning stream because it…

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Tags: accessibility, ARIA, html, slides, speaking, W3C, WAI, WCAG

10 Years Ago: TOevolt

During Buffalo WordCamp last weekend, co-organizer Ben Dunkle asked about what he said was one of the best conferences he ever attended — TOevolt. It prompted me to look up the photos I took and I discovered that it was 10 years ago today. TOevolt was the Toronto version of…

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Tags: speaking