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The soon-Baseline sibling-index() function for animations, CSS and the 2026 FIFA World Cup, use cases for the infinity keyword, container "stuck" queries, and more. What’s !important #16: sibling-inde

Whether you’re enjoying some well-earned time off this August or are jumping headfirst into a new project, how about some new desktop wallpapers to accompany you on all those big and small adventures

As AI reshapes product design, it could give designers greater autonomy or expose the gaps that autonomy makes harder to hide. Exploring both the bull and bear cases, Andy Budd examines what happens w

Many of the AI tools we interact with take the form of text boxes. But what if there was a different way to interact with AI? Oleksii Hrzhehorzhevskyi explores a different approach to creating a new A

While React Server Components rely on the custom Flight protocol to stream interactive UIs, this same mechanism introduces powerful deserialization sinks that attackers can exploit. Durgesh Pawar brea

The writing-mode CSS property sets whether lines of text are laid out horizontally or vertically, and the direction in which blocks and lines progress. .element { writing-mode: vertical-rl; } This i

The common rule of thumb is to never “block” the browser’s main thread when running JavaScript tasks. But is this a hard rule? Victor Ayomipo describes a use case he encountered involving a screenshot

The pointer-events property controls whether an element can become the target of pointer events like clicks, hover states, and other pointer-based events. In other words, it lets you decide whether th

Many companies assume everyone craves new AI features. But the reality is that most people don't want more AI — at least not in the way most AI leaders envision it. Brought to you by Design Patterns F

Read all about boundary-aware CSS, accessible grid lanes, time-based web designs, full-bleed, the customizable select, and new web platform features. What’s !important #15: Boundary-aware CSS, Time-ba