A ReliCSS run sorts a stylesheet’s hacks into dead-browser fossils, fragile IE8 workarounds and leftover vendor prefixes. Here is how I read that output on WordPress sites, plus the case where :has() replaces the old checkbox hack.
Browser vendors are quiet but the community is not. Video state that survives navigation with view transitions, Kevin Powell’s cascade-layer trick for naming media queries, and native masonry landing as grid-lanes.
z-index is not a global ranking. It only orders elements inside whatever stacking context they sit in. The folder analogy, the CSS properties that quietly create a new context, and how isolation: isolate frees a trapped modal.
Chrome 144 added the ::search-text pseudo-element, which finally lets you style find-in-page highlights. Relative color syntax keeps matches readable on dark themes and saturated backgrounds.
Firefox Nightly has a flag for @custom-media, the at-rule that lets you alias a media query behind a name and reuse it. Notes on what it fixes, how Open Props packages ready-made queries, and how to write the syntax today with postcss-custom-media.
A honeycomb layout that keeps its geometry without floats, magic numbers or a JavaScript grid calculator. corner-shape handles the bevel, cos(30deg) sets the aspect ratio, and sibling-index() works out which rows need the half-item shift.
Matching a 1440px Figma file coordinate for coordinate produces CSS full of magic numbers that breaks on the first foldable phone or bumped font size. What to agree on with designers instead: tokens, fluid units, and rules about behavior.
Keeping up with CSS is a filtering problem more than a reading problem. I traded years of RSS folders for the I Heart CSS squad on DailyDev, and this is what a curated feed does that a raw aggregator never did.
Notes from the Web Directions Dev Summit in Sydney, where the argument was that CSS scroll-driven animations make most JS scroll libraries pointless. Includes the CSS, and why prefers-reduced-motion is not optional.
Chrome 144 and Firefox 147 moved anchor positioning and @scope to Baseline, so tooltips and style isolation no longer need a JS library. Also here: the Temporal API in Chrome, the dead HTML document outline, and using your OS as a CMS.