UserAgent Stylesheets for Extensions

Provide extensions with a way to inject styles into a page that take precedence over the page's styles. Do so by implementing user stylesheet level priority, which is lower than author specified rules, but higher for !important rules.

Documentation

Specification

Editor's draft

Status in Chromium

Blink>CSS


Proposed (tracking bug)

Consensus & Standardization

  • Shipped
  • No public signals
  • No public signals
  • Positive

Owner

Last updated on 2017-06-14