Shadow-Piercing descendant combinator, '/deep/' (aka '>>>') for dynamic profile (in stylesheets) (removed)

When a /deep/ combinator (or shadow-piercing descendant combinator '>>>') is encountered in a selector, replace every element in the selector match list with every element reachable from the original element by traversing any number of child lists or shadow trees. Note: /deep/ was for Shadow DOM V0, >>> was for Shadow DOM V1 See also


Shadow-Piercing descendant combinator, '/deep/' (aka '>>>'), including '::shadow' pseudo elements, are deprecated per the resolution at the Web Components f2f meeting [1]. See also "Intent to deprecate" [2]. [1]: [2]:!msg/blink-dev/68qSZM5QMRQ/pT2YCqZSomAJ Intent to remove:


Editor's draft

Status in Chromium


Removed (tracking bug) in:

  • Chrome for desktop release 63
  • Chrome for Android release 63
  • Android WebView release 63

Consensus & Standardization

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

  • No public signals
  • No public signals
  • No public signals
  • No signals


Last updated on 2018-04-10