Tags
The draft of August 18 adds section 2.1, Class Prefix Selectors, defining .foo-* to match any class beginning with that prefix. It replaces the attribute-selector workarounds every design system carries. Nothing implements it yet, and the matching rule has an edge that will catch people: .foo-* does not match foo--bar.
CSS Working Groupverified
Three packages and about 20 minutes. One config tells your build which browsers you target, a linter warns when a stylesheet reaches past that line, and CI says it on the pull request instead of a user saying it in a bug report six weeks later.
web.dev, npmverified
The edition published on August 10 moves Intl.Locale into newly available — a standard way to parse, modify, and inspect Unicode language and region tags, useful anywhere dates, numbers, and currencies are formatted without an extra library. Array.fromAsync(), which turns asynchronous data streams into an array, and the CSS rect() function, which describes rectangular shapes for clip-path and offset-path far more readably than going through polygon(), both moved to widely available. An updated MDN guide to choosing image formats shipped alongside the digest.
web.devverified
Newly available now includes container style queries, which let you style based on a custom property of a parent element, along with the :open pseudo-class for dialog and details, the ToggleEvent.source property, the image-rendering property that keeps pixel art and QR codes sharp when scaled, the text-decoration-skip-ink: all value, and SharedWorker. Widely available now covers the lh and rlh units, Navigator.userActivation, clip-path, and the :user-invalid pseudo-class.
web.devverified
