A rather geeky/technical weblog, est. 2001, by Bramus
@supports named-feature()
In CSS you can feature detect support for things like selectors, properties + values, and at-rules using @supports. But how do you feature detect a change to an underlying implementation, or two existing properties suddenly working together? Enter @supports named-feature(), a function designed to expose these specific capabilities without relying on hacky workarounds.
@supports at-rule(@keyword)
Back in January 2022, I wrote about an exciting new CSS Working Group decision: a function to detect at-rule support using @supports at-rule(@keyword). Fast forward to today, and the CSS Conditional Rules Module Level 5 specification has solidified how this feature works and Chromium (Chrome, Edge, etc.) is about to ship it in Chromium 148!
@starting-style support
@property support
:has() feature detection with @supports(selector(…)): You want :has(+ *), not :has(*)
@supports at-rule(@keyword)
Using the at-rule() function we’ll soon be able to detect support for at-rules and their descriptors.