Web platform features explorer - Host

Web platform features explorer

Tags: css Groups: CSS > Selectors Web Components

The :host CSS pseudo-class selects the containing element of the shadow tree in which it is used. The :host() CSS pseudo-class selects the that element only if it matches the provided selector.

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Specifications

CSS Scoping Module Level 1 (#host-selector), from Cascading Style Sheets (CSS) Working Group (W3C).

Browser support

Chrome 54 Released on 2016-10-12
Chrome Android 54 Released on 2016-10-19
Edge 79 Released on 2020-01-15
Firefox 63 Released on 2018-10-23
Firefox for Android 63 Released on 2018-10-23
Safari 10 Released on 2016-09-20
Safari on iOS 10 Released on 2016-09-13

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