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
• Opera release 53
• Opera for Android release 53

Consensus & Standardization

• 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