If 3D voxel scenes (that you can style), flying focus animations, or new CSS syntaxes sound like your kinda thing, then this issue of What’s !important is definitely for you.

A clever use of CSS to calculate and display a discounted product price by providing a base price and discount amount, featuring modern CSS features like attr(), mod(), and round().

The proposed ShadowRealm API introduces a new kind of realm specifically designed for isolation, and only that.

I came across Kitty Giraudel’s folded corners technique. I’ve been on a bit of a corner-shape kick lately, so I figured that corner-shape could be used to create folded corners as well.

I will explain how my mum inspired this 2026 Mother’s Day scrollytelling experiment — but also, how she inspired my approach to dev and life.

Most grid layouts sit in neat rows, perfectly aligned, like soldiers in formation. But sometimes you want something with more rhythm like, say, a zigzag pattern. Here's how to do it with CSS Grid.

Getting a multi-column of cards to line up equally is is a headache we've all faced, and it gets even harder when working with fixed heights.

Developers have been experimenting with HTML-in-Canvas, a hexagonal world map-analytics feature, a web-based OS for e-ink devices, replacing image sources using the content property, and more. This is What’s !important #10.

We're getting new functions for generating random numbers in CSS! But the road to get here has been a long and winding one.

My shim might give the powers that be another reason to say native support isn't necessary, or if lots of people use my :nth-letter hack in the wild, the browser gods might recognize the need to implement it for real.