CSS Typed OM (Houdini)

The new CSSOM provides typed style access for developers. This will generally improve performance primarily by removing the need to do lots of string parsing. In addition to this, it will enable performant development of various new Houdini specifications (including custom properties, layout and paint). Only a subset of CSS properties are supported for now: https://chromium.googlesource.com/chromium/src/+/master/third_party/WebKit/Source/core/css/cssom/README.md

Documentation

https://developers.google.com/web/updates/2018/03/cssom
https://docs.google.com/document/d/1a4gFI-iFv5uA3SskHMrt-ZphCJTbNda9U78xlHmektA/view

Specification

Working draft or equivalent

Status in Chromium

Blink components: Blink>CSS

Enabled by default (tracking bug) in:

Chrome for desktop release 66
Chrome for Android release 66
Android WebView release 66

Consensus & Standardization

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

Firefox: In development
Edge: Public support
Safari: No public signals
Web Developers: Mixed signals

Owners

shend@chromium.org
nainar@chromium.org

Last updated on 2018-03-28