How we built it

CSS Containment

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



Editor's draft

Status in Chromium

Enabled by default (launch bug) in:

  • Chrome for desktop release 52
  • Chrome for Android release 52
  • Android WebView release 52
  • Opera release 40
  • Opera for Android release 40

Consensus & Standardization


Last updated on 2016-07-22