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Hidde

@hidde.blog
5K followers 503 following 891 posts

Into front-end, accessibility, ethics. I work on standards for NL gov. Co-editor of WCAG 3, contributor to Web Sustainability Guidelines. On W3C's Advisory Board. Blogger: hidde.blog, reader/concert goer: log.hidde.blog, speaker: noti.st/hdv.

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Hidde @hidde.blog · 29/09/2026
them: “your room number is 404” voice in my head: oh god I hope I'll be able to find it
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Hidde @hidde.blog · 24/09/2026
In 15 minutes I'll be live with the friendly people at #InclusiveDesign24 to present “How we want to make WCAG better” www.youtube.com/watch?v=tDvd...
youtube.com
Hidde de Vries / How we want to make WCAG better #id24 2026
YouTube video by Inclusive Design 24 #id24
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Hidde @hidde.blog · 23/09/2026
Happy Web Accessibility Directive anniversary! Today, IAAP runs a virtual event, focusing on end users, reporting, European standards and more! At 10:15 CET I'll moderate a session with regulators, to find out lessons learned. www.accessibilityassociation.org/wad-2026
accessibilityassociation.org
International Association of Accessibility Professionals
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Hidde @hidde.blog · 20/09/2026
“DHH's projects are fine, they are open source, so I had a look and I didn't find his right extremist views in any of the lines of code” as if racism is mostly explicit and not systemic
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Hidde @hidde.blog · 19/09/2026
Bristolians! @webdevconf.com is coming and I'll join this year to discuss art and AI. Creativity cannot be computed, I think many find that obvious. We can all see how dull generated text and art can be. But why is that, what makes art special and what does it need that computers can't do?
webdevconf.com
WDC2026 - October 9 2026, Watershed, Bristol, UK | Web Developers Conference
WDC is the web design and development conference based in Bristol, taking place in autumn each year.
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Hidde @hidde.blog · 18/09/2026
at work, I'm on a course to become a certified AI compliance officer. Bit of a mouthful… but I'm excited to dive into some of the literature that arrived today!
book titled AI and algorithms, mastering legal and ethical compliance
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Hidde @hidde.blog · 17/09/2026
🔗 ’This kind of contribution to your favorite open-source project may feel to you like “free as in beer” and “free as in speech” but to us it is like being handed a “free puppy”: well intended, but accepting it has big consequences for years to come.’ blog.nlnetlabs.nl/maintaining-...
blog.nlnetlabs.nl
Maintaining the love for coding in the time of AI
By Alex Band Over the last year, we have seen the profound effects Large Language Models (LLMs) have on our open-source software work at NLnet Labs. These can be grouped into two main areas: communit...
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Hidde @hidde.blog · 11/09/2026
@nearestnabors.com maybe this is of your interest, as we were chatting standards <-> AI before! bsky.app/profile/did:...
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Hidde @hidde.blog · 11/09/2026
Me, @tzviya.bsky.social and @christianliebel.com are organising a mini workshop on AI and society at W3C TPAC (28 October)! If you have thoughts to share, please submit your proposal. We're looking for 5 minute talks on subjects related to AI and society. Info: github.com/w3c/strategy...
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absolute horses @jcoglan.com · 10/09/2026
like do you not think there are tons of people who have walked away from stupid tech money because they have any principles at all
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absolute horses @jcoglan.com · 10/09/2026
"oh no I guess I have no choice but to see out the IPO" you are a clown
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Hidde @hidde.blog · 10/09/2026
Happy new WCAG 3 Working Draft day! www.w3.org/TR/wcag3/ It's in progress, not final (by far). Input welcomed, as usual. In this version: - new Conformance section - readability/UI improvements - lots of content updates to Guidelines, Requirements, and Assertions
w3.org
W3C Accessibility Guidelines (WCAG) 3.0
W3C Accessibility Guidelines (WCAG) 3.0 will provide a wide range of recommendations for making web content more accessible to users with disabilities. Following these guidelines will address many of ...
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Hidde @hidde.blog · 10/09/2026
Dear #SmashingConf, thanks for having me, I had a blast! My slides and all the links are up on talks.hiddedevries.nl/6qLmAh/five-...
talks.hiddedevries.nl
Five essential ingredients for a web that serves us all by Hidde de Vries
The web is for everyone. That was the promise in 1994, and it held up for long. For years, we’ve been using the web to make money, do admin, watch cat gifs, and share what we want with the whole world...
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Hidde @hidde.blog · 07/09/2026
ready for my workshop! #SmashingConf feeling somewhat underdressed
brilliantly decorated room that looks like it is from the 1500s, in the middle a screen that says let's dive into modern csswall with paintings and a sign that says 'my, you look smashing'
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Hidde @hidde.blog · 06/09/2026
🚆off to Freiburg for Smashing Conference, so excited!
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Hidde @hidde.blog · 04/09/2026
remember there isn't an agreed upon definition of AGI, so it doesn't exist. “AGI has arrived” is as meaningless as “the king of France is bald”
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Rik Schennink @rikschennink.com · 03/09/2026
I spent the past two days cleaning up and improving the cropguide.io landing page. I've replaced the hero illustrations with photos, added a video that shows the editor (it blends in the page), and the live demo is now more to the point. Thanks @kilianvalkhof.com and @hidde.blog for the feedback.
screenshot of the landing page showing the title "help your users upload better photos"
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Hidde @hidde.blog · 03/09/2026
If anyone here wants to understand more about WCAG-EM 2, the new evaluation method for WCAG, I'll be interviewed about it by IAAP UK folks today, and you can join us for free. - 2pm Amsterdam - 1pm UK - 8am New York abilitynet-org-uk.zoom.us/webinar/regi...
abilitynet-org-uk.zoom.us
Welcome! You are invited to join a webinar: IAAP Network and Learn - September. After registering, you will receive a confirmation email about joining the webinar.
The IAAP’s (International Association of Accessibility Professionals) popular ‘Network & Learn’ events are especially for UK and India Chapter IAAP members, plus anyone considering becoming a member. ...
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Hidde @hidde.blog · 02/09/2026
Doing a bunch of talks in the next while: - A web that serves us all (Smashing 🇩🇪, 9 Sept) - Human rights+tech (🇳🇱, 21 Sept) - Improving WCAG 3 (#id24 🌎, 24 Sept) - Creativity cannot be computed (WDC 🇬🇧, 9 Oct) - Green web (ffconf 🇬🇧, 13 Nov) - WCAG-EM (🇬🇧, 18 Nov) see also: hidde.blog/speaking/#up...
hidde.blog
Speaking
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Fuqiao Xue @fuqiao.bsky.social · 31/08/2026
it's from the phototypesetting era: www.w3.org/Internationa...
w3.org
Requirements for Chinese Text Layout - 中文排版需求
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WDC @webdevconf.com · 01/09/2026
We've made it to September which means WDC2026 is just over a month away! Tickets are just £99! With awesome speakers: @joshtumath.uk @amyhupe.bsky.social @paavandesign.com @cjforms.bsky.social @duncanpetrie.com @hidde.blog In the great city of Bristol! webdevconf.com
webdevconf.com
WDC2026 - October 9 2026, Watershed, Bristol, UK | Web Developers Conference
WDC is the web design and development conference based in Bristol, taking place in autumn each year.
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Hidde @hidde.blog · 30/08/2026
TIL about the Q unit in CSS, a quarter of a millimeter www.w3.org/TR/css-value... there are days when I don't use it
w3.org
CSS Values and Units Module Level 3
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Adrian Roselli, pH0 @aardrian.bsky.social · 27/08/2026
Updated my link + popover nav post: adrianroselli.com/2026/07/link... Now includes `flex-wrap: balance` for the navigation items thanks to Ahmad Shadeed’s post: ishadeed.com/article/flex... I am amazed how much new CSS I see, then forget, seemingly immediately. #CSS
ishadeed.com
Balancing flex items with flex-wrap: balance
A look at how flex items wrap and how to balance them across lines.
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Hidde @hidde.blog · 27/08/2026
Dotting the proverbial i's on my Modern CSS workshop at Smashing Conference Freiburg (7 September, smashingconf.com/freiburg-202...). It's so pleasant to remove browser support warnings, and how many things are naturally easy and quicker with CSS these days.
smashingconf.com
Modern CSS for Everyday Development — Freiburg in Germany, September 7–10.
Full-day workshop • Monday, September 7, 2026. If you want to build more resilient, maintainable front-end code, it’s time to leverage modern CSS features that reduce complexity and streamline your wo...
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Hidde @hidde.blog · 26/08/2026
🚅 off to Amsterdam to attend “Screens and Streams in the Age of Climate Crisis” mediaenv.ehc-amsterdam.nl
mediaenv.ehc-amsterdam.nl
media/environment 2026: Screens and Streams in the Age of Climate Crisis
This international symposium (26+27 August, Vrije Universiteit Amsterdam) confronts the question of how media both represent and materially transform the natural environment in a warming world.
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Hidde @hidde.blog · 25/08/2026
🎺 Woohoo, EN 301 549 (version 4.1.0) was “adopted” and is now being prepared for publication (as 4.1.1)*. There's lots of changes, the most significant for web teams: references to WCAG are now to WCAG 2.2. * portal.etsi.org/eWPM/index.h...
portal.etsi.org
eWPM
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Hidde @hidde.blog · 25/08/2026
hello dystopia
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Hidde @hidde.blog · 21/08/2026
I was on a podcast! Me and @bradfrost.com woke up excited and talked about our shared love for music, web, accessibility, and AI sustainability youtu.be/I2EIisn5f6Q
youtu.be
Accessible and Sustainable AI with Hidde
YouTube video by Brad Frost
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Fershad Irani @fershad.com · 18/08/2026
Bit of back story for anyone that's interested: fershad.com/writing/wsg-...
fershad.com
An impact framework for the Web Sustainability Guidelines - Fershad Irani
Telling the story of how I helped develop an impact ratings framework to make the Web Sustainability Guidelines more approachable.
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Hidde @hidde.blog · 18/08/2026
🌿 One question we often hear around the Web Sustainability Guidelines (WSG): what measures will have most impact? A new document, published at W3C today, has impact ratings for each of the success criteria in the WSG: www.w3.org/TR/wsg-ir/
w3.org
Web Sustainability Guidelines (WSG) Impact Ratings
This document describes the impact ratings provided alongside Web Sustainability Guidelines (WSG). The ratings and timeframes support prioritisation of guidelines based on expected impact and when tha...
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Timnit Gebru @timnitgebru.blacksky.app · 13/08/2026
🔇 🔇 🔇 My book, Deep Unlearning, is now available for preorders! I don't know how people write so many books because this one took a lot out of me. It turns out, I had a lot to say 😂, with editors cutting out 50k of my words 🫣 ✴️ You can now preorder it at www.simonandschuster.com/books/Deep-U....
Cover of my new book, Deep Unlearning: The Rise of AI and The Radicalization of a Tech Idealist. 

There are two concentric circles in the book, the left being circuits in black an white, and the right being a bunch of dots with orange accents. The cover background is cream. And the words are written in black except for "Un" which is in orange.
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Hidde @hidde.blog · 11/08/2026
Just released: a new version of the W3C's WCAG-EM Report Tool, that aligns it with the recent WCAG-EM 2 publication. w3.org/WAI/eval/report-tool/
screenshot of first page of WCAG-EM report tool in browser pointed at w3.org/WAI/eval/report-tool
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Hidde @hidde.blog · 02/08/2026
🔗 From today, EU regulation around labeling AI generated content goes into effect. The Commission provides icons that can be used digital-strategy.ec.europa.eu/en/policies/...
digital-strategy.ec.europa.eu
EU Icons for labelling AI-generated content
Deployers of generative AI systems can use the EU set of icons to label certain AI-generated content, in accordance with the AI Act transparency rules.
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Hidde @hidde.blog · 30/07/2026
🌿 A new version of the Web Sustainability Guidelines is out! www.w3.org/TR/web-susta... Updates include: - Impact Measurement + Impact API - Lots of small tweaks following peer review - Improved tone of voice and readability, new introduction Changelog: github.com/w3c/sustaina...
w3.org
Web Sustainability Guidelines (WSG)
Web Sustainability Guidelines (WSG) provide actionable recommendations to help digital teams make informed, sustainable decisions. In considering different aspects of work and the web, these guideline...
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Hidde @hidde.blog · 28/07/2026
Now that WCAG-EM 2 is out, I did some more PRs: - to update the docs on the WAI website (github.com/w3c/wai-webs...) - to update the WCAG-EM Report Tool with the new terminology (github.com/w3c/wai-wcag...) Thanks W3C for making this stuff so easy to contribute to, and yay open source!
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WDC @webdevconf.com · 27/07/2026
Summer is here which means WDC2026 is just around the corner! Tickets are just £99! We have an awesome lineup of speakers including @hidde.blog , @amyhupe.bsky.social , @cjforms.bsky.social @joshtumath.uk, @paavandesign.com and @duncanpetrie.com (more TBC!) webdevconf.com
webdevconf.com
WDC2026 - October 9 2026, Watershed, Bristol, UK | Web Developers Conference
WDC is the web design and development conference based in Bristol, taking place in autumn each year.
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Hidde @hidde.blog · 24/07/2026
TIL that ETSI has a tool to convert Markdown into ETSI-compatible Word documents! Like ReSpec or Bikeshed, without HTML output. It's a step towards making the authoring of their specs more accessible, and possible on lower end devices.
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Hidde @hidde.blog · 23/07/2026
📣 Today is the day: WCAG-EM 2 is officially out as a W3C Note! w3.org/TR/WCAG-EM New: - name; it's now simply “WCAG Evaluation Methodology” - instead of 'websites', it's about 'digital products' (of which websites and apps are examples) - better readability (content, layout) - better examples
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Hidde @hidde.blog · 15/07/2026
wrote about the AB's Web Meetup on the W3C blog www.w3.org/blog/2026/cs... (with shoutouts to and pictures of @level-level.com @cydstumpel.nl @cyns.bsky.social @torgo.com!)
w3.org
CSS animations, human rights, and big accessibility at the AB Web Meetup
On 2 July 2026 , the W3C Advisory Board organised a meetup around the web and web standards. It featured three talks and had time to mingle.
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Hidde @hidde.blog · 14/07/2026
Very pleased to see that AGWG, aka the W3C group that makes WCAG, decided to publish WCAG-EM 2, an update to the WCAG evaluation methodology that me, @stevefaulkner.eurosky.social and Jeroen worked on for the past year lists.w3.org/Archives/Pub...
lists.w3.org
Re: CFC - Publish WCAG-EM 2 as note from Alastair Campbell on 2026-07-10 (w3c-wai-gl@w3.org from July to September 2026)
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Hidde @hidde.blog · 08/07/2026
the top layer lets you put elements on top of everything else, it's great stuff. I don't know if the possibility of balloons blocking link usages was sufficiently considered 🎈
anjappar.nl website with hamburger menu open that id partially covered by black and golden balloons
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Hidde @hidde.blog · 08/07/2026
Woohoo, I am speaking at Smashing Conference in Freiburg about a Web that serves us all! (smashingconf.com/freiburg-2026) And I'm doing a full-day workshop, to learn all about Modern CSS, anchor positioning to z-index! there's two options: be there, be square
smashingconf.com
SmashingConf 2026, September 7–10 — Friendly, inclusive, practical event for web designers and developers. — Freiburg in Germany, September 7–10.
The 13th SmashingConf Freiburg — in our lovely hometown in Germany — will be taking place in the Historic Merchants’ Hall on September 7–10. With one track, two days, 12 speakers and 300 attendees, ex...
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Hidde @hidde.blog · 04/07/2026
🔗 Ketan Joshi analysed Google's latest sustainability report, and yes, energy consumption went up (a lot). Adding up the numbers, Joshi concludes it's not because of manual Gemini use, it's because Google's search engine shows AI results by default ketanjoshi.co/2026/07/01/g...
ketanjoshi.co
Google’s exponential path to climate-wrecking digital bloat
Google’s latest report reveals a completely unprecedented rise in energy consumption – more than any of us expected. Generative AI is a climate carbon bomb.
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Hidde @hidde.blog · 04/07/2026
loved everything about the Web Meetup! The W3C AB was in town for a F2F, so we thought we might as well run a meetup, to chat about web and standards. Thanks to @cydstumpel.nl @cyns.bsky.social and @torgo.com for their great talks, @level-level.com for hosting and Rotterdam/NL for showing up!
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Cyd Stumpel @cydstumpel.nl · 02/07/2026
The joy I felt when I met someone who brought position sticky to browsers🫶 @tess.oconnor.cx
Cyd and Tess smile at a camera
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Manuel Matuzović @matuzo.at · 27/06/2026
“AI and greener choices” by @hidde.blog hidde.blog/ai-greener-c...
hidde.blog
AI and greener choices
AI, especially generative AI, impacts the planet. How can better choices help us reduce our impact?
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Hidde @hidde.blog · 26/06/2026
✏️ AI and greener choices hidde.blog/ai-greener-c... Full write-up of my first AI + sustainability talk, that I gave yesterday at the AI & Government conference.
hidde.blog
AI and greener choices
AI, especially generative AI, impacts the planet. How can better choices help us reduce our impact?
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Hidde @hidde.blog · 24/06/2026
Had a lovely chat with @bradfrost.com about music, sustainability, AI, standards, and accessibility. in a podcast near you soon
me on the left, brad on the right, both smiling
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Hidde @hidde.blog · 23/06/2026
🔗 “Earlier this month, we officially stood up Mozilla.org: a new 501(c)(3) nonprofit created to steward the long term success of the Mozilla Project” blog.mozilla.org/en/mozilla/n...
mozilla.org
Internet for people, not profit
Mozilla is the not-for-profit behind the lightning fast Firefox browser. We put people over profit to give everyone more power online.
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Hidde @hidde.blog · 23/06/2026
Want to learn more about motion on the web, human rights and standards, and the making of accessibility standards from someone who worked on WCAG 1? Join us at the Web Meetup in Rotterdam (W3C AB, Fronteers, Level Level). 3 talks + time to chat! Last few tickets: ti.to/w3cab/rotter...
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