Creating Web Widgets Using the Document Picture-in-Picture API
Firefox 151 recently shipped the Document Picture-in-Picture API. This isn’t the same thing as the (regular?) Picture-in-Picture…
animation-trigger
The CSS animation-trigger property delays the start of a CSS animation until a specific trigger occurs. More specifically, it…
WordPress PHP-Only Block Registration
You want to build a custom WordPress block. But you don’t want to learn React, manage a…
CSS Navigation Matching, Early Days
Really like the intent here. Apply a style when someone navigates from one specific page to another….
What’s !important #17: Custom Highlight API, CSS Navigation Matching, Fixing text-stroke, and More
Plus, how to style skeleton UIs, how to enable diagonal scrolling, how images can overflow themselves, and…
Blocked aria-hidden: The Warning is Right, and Every Fix You’ve Found is Wrong
You closed a dialog and the console went that particular shade of angry mustard. You highlighted the…
Animating CSS border-image
The CSS border-image property is one of those features we take for granted. And it’s not new…
Using and Styling the Dialog Element
Wasn’t it great — nay, amazing – the day we got a native HTML <dialog> element? It’s,…
2026 State of CSS, Devs Surveys
Two things: The State of CSS is obviously one I’m always stoked to see. But this year’s…
Gap Decorations Are Now Available, Here’s What’s New
For a long time now, web developers have had to use border and pseudo-element hacks to style…
What’s !important #16: sibling-index() Animations, Use Cases for the infinity Keyword, Container Stuck Queries, and More
In What’s !important #16, see how the soon-Baseline sibling-index() function can be used for animations, revisit the…
writing-mode
The writing-mode CSS property sets whether lines of text are laid out horizontally or vertically, and the…
pointer-events
The pointer-events property controls whether an element can become the target of pointer events like clicks, hover…
What’s !important #15: Boundary-aware CSS, Time-based CSS, Full-bleed CSS, and More
Similar to last time, What’s !important #15 is pretty stacked — read all about boundary-aware CSS, making…
Get Ready For the Powerful CSS border-shape Property!
So, we recently got the new shape() function (now Baseline!) as well as the corner-shape property. What…
Drupal 11.4.0 is now available
The fourth feature release of Drupal 11 is another performance breakthrough. Using only a third of the…
What’s !important #14: Gap Decorations, random(), field sizing, and More
I know you’re busy, so for What’s !important #14, I’ll be sprinting through what’s been a stacked…
The Shifting Line Between CSS States and JavaScript Events
CSS is listening to us. No, not like that. Rather, CSS is accumulating more and more pseudo-classes…
translateZ()
The CSS translateZ() function adds depth to an element, drawing it closer or farther in space. In other words,…
translateY()
The CSS translateY() function shifts an element vertically by the specified amount. Specifically, it shifts an element either up…
translateX()
The CSS translateX() function shifts an element horizontally by the specified amount. Specifically, it displaces an element to the…
translate()
The CSS translate() function shifts an element from its default position on a two-dimensional plane. This way, we can…
Using Scroll-Driven Animations for Opposing Scroll Directions
Sometimes designers have silly ideas that eventually grow on you. That happened to me with this concept…
A First Look at Scroll-Triggered Animations
Chrome has shipped scroll-triggered animations, and is the first browser to do so. If you update to…