Mastodawn

at the @CSSWG.org (@CSSWG) F2F (face to face) meeting^1, hosted by @Apple.com (@Apple) in Cupertino. Not counting at #w3cTPAC, the prior #CSSWG F2F meeting I went to was 2.5y ago, also in Cupertino, and before that 2019 in SF. Good to see so many longterm colleagues in-person.#W3C #CSS #webStandards^1 http... tantek.com

at the @CSSWG.org (@CSSWG) F2F (face to face) meeting^1, hosted by @Apple.com (@Apple) in Cupertino. Not counting at #w3cTPAC, the prior #CSSWG F2F meeting I went to was 2.5y ago, also in Cupertino, and before that 2019 in SF. Good to see so many longterm colleagues in-person. #W3C #CSS #webStandards ^1 https://wiki.csswg.org/planning/cupertino-2026 - Tantek

Tantek Çelik Jan 28

CSS Working Group Wiki [CSS Working Group Wiki]

Sasha Firsov Dec 25

@slightlyoff
Merry Christmas 🎄 !
I am wondering are there folks in Browser teams who can elaborate of exposing the UI theme tokens of system and browser to the web app developers?

Consumer Semantic Theming in addition to custom/light/dark, providing the "native". But the amount of colors which passed down to CSS is far from sufficient. The browser as native application consumes OS theme and also has own customization ➡️ CSS

Looking for a lead.

Cheers in New 2026 🎠year!

#w3ctpac #w3c #css

W3C Developers Dec 16

This year’s #w3cTPAC in #Kobe 🇯🇵 brought together 700+ participants for 85 community-driven breakout sessions. Several key themes emerged such as #AI, #accessibility, #identity, #credentials, #wallets, #privacy and #security. Each GitHub issue details a session, with links to agendas, slides, and recordings.

Based on feedback, next year’s breakout sessions will be distributed across additional days. Don’t miss out! Join us online or in person in October 2026!

W3C Developers Dec 15

✨When you put developers, standards, and sushi 🍣 in one room … magic happens! At #w3cTPAC in Kobe, 30+ folks turned an evening into a #hackathon: 17 projects in 90 minutes! From #CSS playgrounds to data dashboards, the results were useful and highly creative.

Hackathons like this one remind us that the web moves forward when people show up, try things, and share what they learn.

Thanks to @elena and all who made it happen! See you next time in #Dublin 🇮🇪!

World Wide Web Consortium Dec 12

At the November 2025 TPAC event, Shawn Lawton Henry, W3C Director of Web Accessibility Initiative (WAI), highlighted W3C’s work on global accessibility including WCAG 2.2 becoming an ISO standard; that W3C is expanding its training offerings with a new Accessibility Fundamentals course, an updated WCAG 2.2 course, and potential future courses on evaluation. WAI also continues translation work; updates to ATAG and better coordination around accessibility testing.
#w3cTPAC
https://www.youtube.com/watch?v=fqpplGBMbzI

World Wide Web Consortium Dec 10

During the November 2025 TPAC week, Fuqiao Xue, W3C Senior Principal Internationlization Specialist, honored Addison Phillips for over 20 years of leading W3C’s internationalization work, welcomed new chair Joel Sahleen, and highlighted recent I18N achievements. He also called for continued community participation to ensure the web works for all languages and cultures.
#w3cTPAC #i18n
https://www.youtube.com/watch?v=aR4wgLAba80

W3C Developers Dec 9

At #w3cTPAC in Kobe 🇯🇵, several W3C chartered work groups as well as community-run groups had #AI on their group meeting's agenda. For example, #WebNN got fresh proposals (dynamic shapes, tensor binding), and WebMCP got more in-depth discussion as way to let web apps expose JavaScript-based tools to AI agents integrated in browsers.

World Wide Web Consortium Dec 9

At the November 2025 TPAC event, Roy Ran, W3C Principal Accessibility Specialist, presented: "Web & AI in W3C" explaining how W3C is engaging with AI, why AI matters for the web, and what AI-related standards already exist (like WebNN, WebGPU, and data/identity technologies). He highlighted ongoing work on responsible AI, announced the new Web & AI Interest Group, and mentioned plans for a future workshop on AI agents and browsers.
#w3cTPAC #Web&AI
https://www.youtube.com/watch?v=ACXhxBZuYl0

World Wide Web Consortium Dec 8

At the November 2025 TPAC event, Kevin White, W3C Senior Principal Accessibility Specialist, gave an overview of W3C accessibility work over the past year, covering key groups like the Accessibility Guidelines, ARIA, APA, and WAI Interest Group. Highlights include updates to WCAG 2 and WCAG 3 drafts, ACT Rules, WCAG2ICT, test suites, and resources. Future work includes WCAG 3 publication, accessibility for AI, and spoken presentation specs.
#w3cTPAC #a11y https://www.youtube.com/watch?v=PPHLyPJfqLs