CSS Selectors 4 Pseudo-Class :where()

The Specificity-adjustment pseudo-class, :where(), is a functional pseudo-class with the same syntax and functionality as :is(). Unlike :is(), neither the :where() pseudo-class, nor any of its arguments contribute to the specificity of the selector — its specificity is always zero.

Documentation

Specification

Editor's draft

Status in Chromium

Blink>CSS


In development (tracking bug)

Consensus & Standardization

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

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Owner

Last updated on 2019-05-21