::part pseudo element on shadow hosts

CSS

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.

Comments

This is in CSSWG First Working Public Draft.

Documentation

https://github.com/fergald/docs/blob/master/explainers/css-shadow-parts-1.md

Specification

Working draft or equivalent

Status in Chromium

Blink components: 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.

Firefox: Public support
Edge: Public support
Safari: Public support
Web Developers: Positive

Owners

fergal@chromium.org
jackalmage@gmail.com

Last updated on 2019-02-07