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

Category

CSS

Type

New or changed feature

Status

Enabled by default (Chrome 88)

Intent stage

Shipped

Summary

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.

Standards & signals

• Specification: https://drafts.csswg.org/selectors-4/#matches
• Firefox: No signal
• Safari: Shipped/Shipping
• Web developers: No signals
• Tracking bug: https://bugs.chromium.org/p/chromium/issues/detail?id=568705

View on chromestatus.com