Web platform features explorer - Size containment

Web platform features explorer

Tags: css Groups: CSS > Containment

The contain: size CSS declaration sets an element's dimensions exclusively by its height and width properties, ignoring its contents and descendants. This permits the browser to avoid slower layout calculations.

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contain

Specifications

CSS Containment Module Level 2 (#containment-size), from Cascading Style Sheets (CSS) Working Group (W3C).

Browser support

Chrome 52 Released on 2016-07-20
Chrome Android 52 Released on 2016-07-27
Edge 79 Released on 2020-01-15
Firefox 69 Released on 2019-09-03
Firefox for Android 79 Released on 2020-07-28
Safari 15.4 Released on 2022-03-14
Safari on iOS 15.4 Released on 2022-03-14

Interop

Included in Interop 2022
Included in Interop 2023

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