A shadow-piercing descendant combinator (>>>) is defined in https://drafts.csswg.org/css-scoping/#deep-combinator as a straightforward replacement for `/deep/` combinator (which was for Shadow DOM V0), with a restriction that it is only allowed for selectors in querySelector() (aka static profile, not in dynamic profile for styling). See spec discussions: https://github.com/w3c/webcomponents/issues/78 (already closed) https://github.com/w3c/csswg-drafts/issues/640


Working draft or equivalent

Status in Chromium


In developer trial (Behind a flag) (tracking bug) in:

  • Chrome for desktop release 56
  • Chrome for Android release 56
  • Chrome for iOS release 56
  • Android WebView release 56

Consensus & Standardization

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



See also https://www.chromestatus.com/features/6750456638341120 for /deep/'s case.

Last updated on 2020-11-09