One of the things that we at Chrome have been thinking about is a way to do declarative route and navigation matching **in CSS**. Together with @nomster.bsky.social and @dbaron.org I’ve been working on it for the past few months, and next week we’ll be presenting our work at the CSSWG F2F meeting.

Did I mention that `flex-wrap: balance` landed in Chrome stable last month!? 👀👀👀

Una Kravets@una.im · last yr.

Introducing 🤯 flex-wrap: balance 🤯 Would you use this? ⚠️ Not a real feature yet, just something one of our engineers has been working on. (You can try it out in the latest Chrome Canary with the experimental web platform features flag though!)

Gecko: Intent to Ship: Advanced CSS attr() function.

Hi! I'm working on a new HTML feature: filterable select There are two proposed API shapes so far: 1. Nesting <input> in <select> 2. Sibling <input> for listbox <select> w/id ref Option 1 is more ergonomic, but would break selects in older browsers Thoughts? (Both currently in Canary w/flag)

Niceeeeee

IntentToShip@intenttoship.dev · last mo.

Gecko: Intent to Ship: sibling-index() and sibling-count()

I literally had this blog post in my drafts since March 😆 But then I was waiting for browser support and then event season happened. HERE IT IS THOUGH. As promised at #CSSDay

Una Kravets@una.im · last mo.

With style queries now in all browsers, here's my take on the best way to do dynamic color theming with modern CSS: - Custom properties - light-dark() - contrast-color() - Style queries - Relative color syntax (^Features available in all modern browsers) Read about it ⬇️⬇️ una.im/modern-css-t...

With style queries now in all browsers, here's my take on the best way to do dynamic color theming with modern CSS: - Custom properties - light-dark() - contrast-color() - Style queries - Relative color syntax (^Features available in all modern browsers) Read about it ⬇️⬇️ una.im/modern-css-t...

una.im | Modern CSS theming with light-dark(), contrast-color(), and style queries

Combine three new CSS features to build fully adaptive themed components.

una.im

`sibling-index()` and `sibling-count()` are currently being prototyped in Firefox¹, hopefully available soon for testing :) #cssday ¹ groups.google.com/a/mozilla.or...

What CSS doesn’t know and @nerdy.dev’s new JavaScript library Prop for That: prop-for-that.netlify.app #cssday

“None is a state you can design for. 1 or 3, etc. and the component can own it” — @nerdy.dev #cssday

A #sketchnotes for the talk "Modern UI Patterns" by @una.im at the @cssday.nl #cssday

As @una.im just mentioned in her #cssday talk, the CSS WG recently resolved to insert a ⓘ after EVERY SINGLE INTEREST INVOKER on touchscreens. Here’s a mock of what this would look like for bsky. This is the issue to let the CSS WG know what you think: github.com/w3c/csswg-dr...

Guess who’s closing out #cssday?! This duo 😎😎 @nerdy.dev

Sorting a product list by rating with reading-flow and semantic attr()! Cool! @kevinpowell.co @cssday.nl #cssday

Filterable select is coming, and it’s going to be a game changer 🎉

Brecht De Ruyte@utilitybend.com · 2mo ago

On the side at #CSSday I've been tinkering with the filterable select. It's still in very early stages in Chrome Canary, but I can't help being a little bit excited. @jakearchibald.com gave a talk yesterday on how the customizable select came to life. It's amazing how many doors are being opened.

This has been a common theme today at #cssday and it’s true: complaining about broken stuff in browsers is a great way to get them fixed! Don’t silent. Let us know. Have a new idea: write a blog post!

Kevin Babbitt@kevinbcmu.bsky.social · 2mo ago

This is now fixed, thank you @osamdavis.bsky.social! crrev.com/c/7902436

You heard it here first — 2026 is the year you can finally style a select!! It will be in all browsers by the end of the year 🎉🎉🎉 @jakearchibald.com #cssday

Truly blessed that I can always ping @bram.us when I can’t figure out why a view transition isn’t working 😆 Such a great talk! Love the explode view slides (not pictured) #cssday

Anchor pos & interest invokers are awesome! The "taller" tooltips don't fit in the viewport below the link so the position flips. All w/a few lines of CSS, a couple of HTML attributes, and it's a progressive enhancement so the existing experience doesn't change. (still working on the animations)

Wowow @rebane2001.bsky.social is blowing everyone’s minds at #cssday 🤯 Obsessed with her and this talk! Next time someone tells me CSS isn’t a programming language I’m going to send them the video from this talk 😆 Check out lyra.horse for more goodies

These sketch notes are great!

Artem Pendiurin@erblack.me · 2mo ago

A #sketchnotes for the talk "Let's fix the web's text size" by @joshtumath.uk at the @cssday.nl #cssday

We’re ready for #CSSDay! Come hang with the Chrome crew upstairs! We’ve got keychains, stickers, and some good sessions planned downstairs too 🎉

CSS DevRel, The Reunion. #CSSDay #ChromeDevRel Caption: @nerdy.dev, @una.im, and I.

Had a blast #FutureFrontend! And tomorrow I’m headed to Amsterdam for #CSSDay 🎉🎉 Will I see you there? 👀

Customizable select is coming to Safari 27! 🥳 Want to try it out? Check out my demo collection: codepen.io/collection/B...

CSS position: sticky now sticks to the nearest scroller on a per axis basis! | If you’ve ever tried to build a data table with a sticky header and a sticky first column, you know the pain. You’d think a simple position: sticky with top: 0 and ... | www.bram.us/2026/03/30/c...

CSS position: sticky now sticks to the nearest scroller on a per axis basis!

If you’ve ever tried to build a data table with a sticky header and a sticky first column, you know the pain. You’d think a simple position: sticky with top: 0 and left: 0 would be enough, but the rea...

bram.us

✅ Nice lil btn scale-down 🙈 Layout change bc the scroll bar disappears 🙈 No light dismiss These UX problems can easily be solved with: - closedby="any" - overscroll-behavior: contain

The State of CSS survey is out! It's shorter this year! Please go take it! survey.devographics.com/en-US/survey...

State of CSS 2026

Take the State of CSS survey

survey.devographics.com

Wow 🤯

CSS by T. Afif@css-only.dev · 2mo ago

What about a straight line that bends when the circles get closer and stretches when they get farther. It's surely not possible using pure CSS, right? Right!? 👀 css-tip.com/bending-line/ Probably my new favorite demo, powered by the modern features. CSS is awesome! 😍

Jamming out to my favorite high school music 🎶 singing all the words out loud 🎶 making some new CSS demos 💻 watching my baby sleep peacefully on the monitor 👶🏻 The dopamine is hitting 💕