This specification defines the ::part() pseudo-element on shadow hosts, allowing shadow hosts to selectively expose chosen elements from their shadow tree to the outside page for styling purposes.

Documentation

Specification

Working draft or equivalent

Status in Chromium

Blink>CSS


Enabled by default (tracking bug) in:

  • Chrome for desktop release 73
  • Chrome for Android release 73
  • Android WebView release 73

Consensus & Standardization

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

Owners

Comments

This is in CSSWG First Working Public Draft.

Search tags

part theme css shadow,

Last updated on 2020-11-19