Used this last week to write a client-side router for my app. ~100 loc. Awesome.

The URL Pattern API is now available across all major browser engines! It's now much easier to work with URLs. See developer.mozilla.org/en-US/docs/W... for more info.

A Kanban board demo which uses experimental CSS Masonry support in Chromium, and View Transitions. Learn more: github.com/MicrosoftEdg...

A Kanban board using CSS Masonry, because why not. The upcoming CSS Masonry lets you size columns separately and place items in specific columns. Masonry isn't just about randomly sorted photo galleries! This, and other demos, at github.com/MicrosoftEdg...

How useful is it for you to be able to style select elements? Is this something you've had to do before? Would you adopt the native browser API if it shipped cross-browser?

Vibe coding our ways through every problem isn't a very responsible thing to do. Let's be more responsible. But also, if we're going to keep using AI coding tools, let's demand more from them! Reflecting on this over at patrickbrosset.com/articles/202...

The CSS Custom Highlight API lets you style **ranges** of text without creating new nodes in the DOM. And now, with the new highlightsFromPoint() method, you can even find custom highlights under the cursor and unlock cool text editing experiences. See developer.mozilla.org/docs/Web/API...

The CSS Custom Highlight API lets you style **ranges** of text without creating new nodes in the DOM. And now, with the new highlightsFromPoint() method, you can even find custom highlights under the cursor and unlock cool text editing experiences. See developer.mozilla.org/docs/Web/API...

Curious about what we do on the WebDX community group (i.e Baseline and web-features)? We're organizing a Reddit AMA on Thursday. Ask your questions here: www.reddit.com/r/webdev/com...

Did you notice that Trigonometric Functions won the “Most Hated Feature” pageant in this year’s State of CSS survey? @monknow.bsky.social thinks they deserve more than a little love, and for good reasons… css-tricks.com/the-most-hat...

Amazing reading list on learning modern CSS features. https://nerdy.dev/cascading-secret-sauce

For anyone understanding 🇩🇪 German: we recently did a whole podcast episode with @tomayac.com on all these APIs (also talking about how Google and Microsoft back them with their individual own LLMs, Gemini / Phi): workingdraft.de/677/

Edge has the same built-in AI APIs that Chrome does (Prompt, Writer, Rewriter, and Summarizer, soon Translator). If you've played with it in Chrome, give it a try in Edge and let us know your feedback. See: learn.microsoft.com/microsoft-ed... learn.microsoft.com/microsoft-ed...

Earlier this week, I learned from @patrickbrosset.com that DevTools in Chrome and Firefox are built using web technologies. That means that yes, you can inspect Chrome DevTools using Chrome DevTools 🤯

Freiburg, Germany, is a very pretty city. And look, it already uses CSS Masonry! Good thing that the CSS Working Group resolved to use a new display type for Masonry. We’re making real progress folks!

Having fun meeting with some very passionate people here at @smashingconf.com People love the web and will fight for it. I’m here for this.

Between the time we launched the original Learn CSS course on web.dev and today, container queries landed in browsers and became Baseline Widely available! It was high time for an update, and we were lucky enough to have the team at OddBird work with us. Enjoy 9 new modules! web.dev/blog/learn-c...

I always have a bunch of ideas for technical web dev blog posts and talks. But I don't know which to prioritize. What would you love to hear about more in details, from somebody who works on browsers?

I talked about Gap Decorations at the @smashingconf.com pre-event. Today I keep bumping into folks who tell me how excited they are about it. Also today, Mozilla gave a positive position on the proposal: github.com/mozilla/stan... A matter of time now! See also: patrickbrosset.com/lab/css-gap-...

Great lightning talk by @nik.digital at the @smashingconf.com pre-event today. The weirdness of JS dates, and the promise of Temporal. Temporal is coming soon to every browsers (🤞🏽). As a dev, if you work with dates, take a look and get ready for it. It doesn’t replace Date, it’s its own thing!

Anyone here know much about test262.fyi? Is it possible to filter the test results per proposal?

📢 The Interop 2026 call for proposal is now open! Starting today, you can tell the companies who build browser engines which web features you care about the most so we can make them more interoperable across browsers. More at blogs.windows.com/msedgedev/20...

📢 The Interop 2026 call for proposal is now open! Starting today, you can tell the companies who build browser engines which web features you care about the most so we can make them more interoperable across browsers. More at blogs.windows.com/msedgedev/20...

@patrickbrosset.com's article on the WebMCP proposal has my mind racing. Really feels like the future of the web, with some very interesting implications. patrickbrosset.com/articles/202...

👀 TIL about WebMCP - Proposal from Microsoft/Google Allows web dev to expose their web application functionality as MCP tools that AI agents can use to interact with a page The Edge team has started implementing a prototype already bsky.app/profile/patr...

Excited to attend @smashingconf.com in Freiburg next week! I'll give a short talk on gap decorations at the Jam session. Come join me, or find me whenever during the conf to chat about what's new on the web, what's coming soon, Baseline, and more... smashingconf.com/freiburg-2025 #webdev #css

Folks who use Firefox Developer Edition: What drew you to that version rather than Firefox Release/Beta/Nightly?

Take a look at this early prototype of our WebMCP proposal! 📺 WebMCP lets you control how AI agents interact with your web pages. For more info and feedback, see patrickbrosset.com/articles/202... www.youtube.com/watch?v=gbu9... #ai #agentic #mcp

AI agents are using the web to act on users' behalf. Wouldn't it be great if you, web devs, had a say in it? There's a proposal on the ML working group that would allow just that, and we'd love your feedback about it!

IDs in HTML are designed to be unique, yet from a quick HTTP archive query it seems like an order of magnitude of 45% of HTML responses in July 2025 had duplicates. Perhaps we should embrace that IDs being unique is a lost battle.

The State of HTML 2025 survey is still open. Take it while you can, and help us understand the web dev community better, so we can make the web better, for everyone. survey.devographics.com/en-US/survey...

My policy of "wait until Ahmad writes about it before you try to fully understand it" paying dividends again ishadeed.com/article/anch...

Had to dig into some scroll and memory issues last week, and cannot stress enough how much of a godsend Edge's 3D devtools view continues to be: learn.microsoft.com/en-us/microsoft-…

Starting to work on something cool: github.com/webmachinele... As a web developer, if you think you should be given a say in how AI browsers use app, then take a read! I'll be digging into this more soon, but would love to hear any early feedback you might already have on this.

New in Chrome DevTools: Instantly check CSS feature compatibility with Baseline! Chrome DevTools now displays the Baseline status for CSS properties right in the Elements panel - Baseline gives you clear info about which web features are ready to use today.

We're proposing a new mechanism to test if CSS at-rules are supported: @supports at-rule(@starting-style) { ... } Read more: github.com/MicrosoftEdg... Let us know your thoughts: github.com/MicrosoftEdg...

Or this excellent one by @patrickbrosset.com: web-platform-dx.github.io/web-features...

⚠️ Last chance to fill out #StateOfHTML 2025 and get browsers to pay attention to your web platform pain points! After popular demand, the survey closing date has been extended for a few more days so that returning OOO folks get a chance to fill it out too! survey.devographics.com/en-US/survey...

Starting my new role on Monday. Could be anywhere.

Go take the State of HTML 2025 survey if you have a minute! WOMEN, ESPECIALLY! survey.devographics.com/survey/state...

A Friendly Introduction to SVG, by @[email protected]: https://www.joshwcomeau.com/svg/friendly-introduction-to-svg/ #introductions #svg #images

The State of HTML 2025 survey is now live! Big thanks to @lea.verou.me for taking the lead on selecting this year's questions and features, as well as suggesting quite a few improvements!

I just wanted to say, I’m probably more proud of this Ted talk than just about anything I’ve ever done so I’m gonna be absolutely useless for the next couple of weeks as I promote the shit out of this because I want you to watch it because it matters in the moment we are in youtu.be/dVG8W-0p6vg

Igalia, Interop and the Sovereign Tech Fund We have been a proud contributor to the Interop Project since its inception. This year, we’re taking those contributions even further thanks to @sovereign.tech www.igalia.com/2025/07/14/I...

oh DAMN this is cool: leanrada.com/notes/css-only-l…

We are back! #C64 www.commodore.net The first official Commodore 64 in over 30 years is here - a faithful recreation of the original motherboard on FPGA hardware. HDMI, WiFi, USB, but compatible with every existing cartridge and peripheral. Not an emulator - a recreation. Same price as my first $299

✨ New article! ✨ A few weeks ago, while brainstorming silly things I could do with Scroll Driven Animations, I suddenly remembered that text can be animated too 🤯. That little spark quickly led me to a new idea: a Scroll-Driven Sticky Heading. 🔗 @css-tricks.com: css-tricks.com/scroll-drive...

I know some of you might be tired of the debate around CSS Masonry, or might think that Masonry isn't cool anymore these days. But, come on, check out what you can do with it! I can't wait for you all to get your hands on it, get creative, and send feedback! Soon...

There’s always a place for Masonry! It’s definitely ok to get stoked about new ways to tackle things, and these examples show how much found layout can be.

I know some of you might be tired of the debate around CSS Masonry, or might think that Masonry isn't cool anymore these days. But, come on, check out what you can do with it! I can't wait for you all to get your hands on it, get creative, and send feedback! Soon...