The State of CSS 2026 survey is out! These survey's are a huge signal to the browser makers on what people want, and the more people fill the out, the better that information is. survey.devographics.com/en-US/survey...

Some browsers check what site you're on and render the page differently. Yup, you read that right. TikTok gets special treatment. So does Netflix. Instagram. Even SeatGuru. Safari and Firefox both do this. Chrome doesn't. There's a reason for that... Read on. denodell.com/blog/browser...

Safari 26.5 is here! It includes the :open pseudo-class, the element-scoped keyword for random(), color-interpolation for SVG gradients, the ToggleEvent.source property for popovers, and the Origin API. And a ton of polish and fixes. webkit.org/blog/17938/w...

Dang this is an extremely meaty update to STP. My eyes glazed over reading all the fixes webkit.org/blog/17953/r...

Becoming “obsessed” with Covid in late Jan/early Feb 2020 is not “before the rest of the world” — unless you believe the only country in the world that matters is the U.S. Literally billions of people knew then. Claiming GENIUS for simply watching news from Asia is peak white American superiority.

Name-Only Containers: The Scoping We Needed If we give a `container-name` to the root of all our unique components, we can scope styles to them with a simple @container query.

Using Claude Code feels like playing SimCity.

Safari 26.5 beta is out! Includes: • `:open` pseudo-class for `<details>`, `<dialog>`, `<select>`, and `<input>` elements • `color-interpolation` attribute on SVG gradients, enabling `linearRGB` color spaces • `source` property on `ToggleEvent` • Origin API developer.apple.com/documentatio...

The COVID-19 pandemic is not over, the effects of SARS-CoV-2 are commonly body-destroying in ways we’re barely beginning to understand, and the best way to keep yourself and others safe is to WEAR A MASK.

oh heck yes I don't need to bother fixing this bug now

Safari 26.4 is here! webkit.org/blog/17862/w... Grid Lanes. WebTransport. Keyboard Lock API. And _tons_ of fixes & improvements. Please read the introduction to our article to learn what we’ve been up to…

Safari compact tabs are back 😌 Also, very many quality fixes -- my favorite kind of work.

Nice improvements to scoped custom elements registries!

Grid Lanes!! I can’t wait to use this everywhere

ECMAScript excitement 😉 Safari 26.4 ships support for @tc39.es Stage 4 Iterator.concat 🎉 It creates a new iterator by sequencing existing iterators.

Yessss, name-only container queries shipped! My latest contribution to WebKit 😅😭

Hella cool to see MathML oriented content and demos in WebKit feature highlights!

Safari 26.4 is here! webkit.org/blog/17862/w... Grid Lanes. WebTransport. Keyboard Lock API. And _tons_ of fixes & improvements. Please read the introduction to our article to learn what we’ve been up to…

Did you see what’s in Safari Technology Preview 238?! * Customizable <select> * Scroll anchoring * The :open pseudo-class * Threaded animations * JSPI for WebAssembly and more — including fixes for SVG, tables, WebRTC… webkit.org/blog/17848/r...

What do these API have in common? * WebTransport * Keyboard Lock API * Grid Lanes w/ flow-tolerance * Threaded scroll-driven animations * WebAuthn PRF extension * ReadableByteStream * Blob.stream() with BYOB reader * Name-only @container queries * min(), max(), and clamp() in <img> sizes attribute

Did you see? The first beta of Safari 26.4 is out today. What’s most exciting to you as a person making websites/apps? developer.apple.com/documentatio...

Another episode of Unraveled: Understanding Complex Illness posted to YouTube. Please share, subscribe, comment, and most of all I hope it is helpful and educational. youtu.be/NGbJWUp2ipU

@kevinpowell.co I’m listening to your podcast episode about Interop 2026. Congrats on getting it out so soon! I hear you wondering about “Dialogs & Popovers” support in Safari. It’s wrong to think that means our implementation of dialog and popover is poor. Nope! The focus area name is confusing 🤪

Grid: for creating containers for fluid content to fill Flexbox: for stacking rigid blocks of content in the most efficient way possible Does this even make sense? Intuitively, grid is rigid and flexbox is fluid. But it's the other way around for their contents? ??? #vagueCSS

Interop 2026 launches today! If you want know on what it includes and what it means for web development — our article provides all the details. webkit.org/blog/17818/a... Focus areas include Anchor Positioning, Style Queries, contrast-color(), WebTransport and much, much more.

I’m seeing so much about LLMs in my feed today. Web designers and developers — how are you feeling about AI and what it means for your work? Are you using the tools? How? What’s changing? How do you expect AI to be used in the future for making websites & web apps?

Safari 26.3 is here with Zstandard file compression, Navigation API’s AbortSignal for better control in single-page apps, and fixes for anchor positioning, multi-column layouts, & more. Plus fullscreen video now dims surroundings in visionOS. webkit.org/blog/17798/webkit-features-for-safari-26-3/

CSS grid lanes are arriving sooner than you think. @jensimmons.bsky.social says Safari Technology Preview has the finalized syntax, while Chrome and Firefox are close behind. Meanwhile, you can use @​supports for progressive enhancement and a CSS or JS polyfill fallback. webkit.org/blog/17758/w...

Are you using CSS Grid? If you write CSS & code layouts on the web, and not using Grid — why not?!? I see so many sites that still use only Flexbox for 100% of their layout. 0% Grid. Why? What would help? I hear people say it’s hard. Is it? What’s hard? What do you want to learn about CSS Grid?

When will CSS Grid Lanes arrive? How long until we can use it? from @jensimmons.bsky.social on the webkit blog webkit.org/blog/17758/w...

It’s wild to me just how much wrong information there is out there (written by humans in the later half of 2025) about using CSS to create masonry layouts. There is no property named `grid-lanes` (as in grid-lanes: repeat(4, 200px)). There is no `masonry-direction` property. Or `masonry` anything.

Whoop! Updating my CodePen! codepen.io/dutchcelt/fu...

I’ve been using r/lh unit for typography related content. A perfect example of this is @jensimmons.bsky.social article on vertical rhythm.

Excited about CSS Grid Lanes? Wondering when you can start using it? We’ve got you covered. Updates on browser implementations + strategies for progressive enhancement. webkit.org/blog/17758/w...

Web designers/developers, What are your biggest questions about CSS Grid Lanes?

Are you excited about CSS Grid Lanes? It can be tricky to fully understand how content order works in this layout. Safari Technology Preview 235 just landed a new Order Number tool in our Grid Inspector to quickly see what’s up. Especially helpful with `flow-tolerance`. webkit.org/blog/17746/n...

📝 Algorithmic hover states with contrast-color() - Taking some cool new features for a spin. daverupert.com/2026/01/algo...

Today the CSS Working Group resolved to rename the property that lets you adjust the tolerance of how content lays out in CSS Grid Lanes to `flow-tolerance`! Just updated the article about it with the new name. webkit.org/blog/17660/i...

Any Focus Area that still needs work is considered for Interop 2026, but it’s not included automatically. Maybe some of these will be carried over? (Not individual failing tests, but whole areas.) Depends. It also might be more important to move on to other features to improve them.

Happy new year! Ah, now we can checkout the results of Interop 2025 — and see the entire year on the dashboard. wpt.fyi/interop-2025... Safari might have started the year in last place, but we definitely ended in first. (Interop Project tracks automated test pass rates for specific web API.)

I enjoyed catching up on this post while I was on vacation.

Have you been wishing masonry layouts would just hurry up and arrive in CSS?? Well, happy holidays! webkit.org/blog/17660/i...

Congrats to the Safari team. It's been years since Safari is the new IE meme was accurate.

Check out all the revised demos of Grid Lanes in Safari Technology Preview 234! webkit.org/demos/grid3/

More holiday cheer. For those of you asking about Safari’s “stable” Interop 2025 score…

The WebKit team is pushing out new features at lightning speed right now!

Did you see everything in Safari Technology Preview 234? webkit.org/blog/17674/r... It’s got a lot of new features including Grid Lanes, Threaded Scroll-driven Animations, seven new Web API, and more. Plus a TON of other improvements & fixes.

Have you been wishing masonry layouts would just hurry up and arrive in CSS?? Well, happy holidays! webkit.org/blog/17660/i...

CSS `random()`, now in Safari 26.2. Play around with it while waiting for other browsers to ship.