@supports selector() feature query function

Adds a function that queries whether a user agent supports a selector.

Web authors can use this feature to query whether the UA supports the selector before they actually try to apply the specified style rules matching the selector.

Demos

Documentation

Specification

Editor's draft

Status in Chromium

Blink>CSS


Proposed (tracking bug)

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.

Owners

Last updated on 2019-10-10