CSS Selectors 4 Pseudo-Classes :is(), :where()

The matches-any pseudo-class, :is(), is a functional pseudo-class taking a selector list as its argument. It represents an element that is represented by its argument.

Specification

Editor's draft

Status in Chromium

Blink>CSS


In developer trial (Behind a flag) (tracking bug) in:

  • Chrome for desktop release 66
  • Chrome for Android release 66
  • Android WebView release 66

Consensus & Standardization

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

  • No signal
  • No signal
  • Shipped/Shipping
  • No signals

Owner

Last updated on 2020-10-27