A primitive for isolating style, layout, and paint. This allows authors to explicitly opt into a set of restrictions that enables user agent optimizations.

Documentation

Specification

Editor's draft

Status in Chromium

Blink


Enabled by default (tracking bug) in:

  • Chrome for desktop release 52
  • Chrome for Android release 52
  • Android WebView release 52

Consensus & Standardization

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

Owner

Search tags

contain,

Last updated on 2020-11-19