Interop 2026

Interop 2026 is officially a thing and there's plenty of new (and even old) CSS features that we can look forward to being cross-browser compatible and consistent!

Interop 2026 originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.

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Interop 2026

Geoff Graham

Feb 17, 2026
Updated on

Feb 19, 2026

Interop 2026 is formally a thing. So, you know all of those wild, new CSS features we’re always poking at but always putting under a “lack of browser support” caveat? The Big Three — Blink (Chrome/Edge), WebKit (Safari), and Mozilla (Firefox) — are working together to bring full and consistent support to them!

You can read the blog posts yourself:

• Interop 2026: Continuing to improve the web for developers (web.dev)

• Announcing Interop 2026 (WekBit Blog)

• Launching Interop 2026 (Mozilla)

• Microsoft Edge and Interop 2026 (Edge)

An, yes, there’s plenty to get excited about specifically for CSS:

Anchor positioning

From our guide:

CSS Anchor Positioning gives us a simple interface to attach elements next to others just by saying which sides to connect — directly in CSS. It also lets us set a fallback position so that we can avoid the overflow issues we just described.

anchor positioning

Article

Apr 28, 2025

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Anchor Positioning Just Don’t Care About Source Order

Geoff Graham

Original source