The goal is to give authors an easy way to respect the OS-level text scale setting. See the explainer for more details.

This spec text mostly references CSS. The color-scheme entry was used as a template.

Fixes #12526 .

• At least two implementers are interested (and none opposed):
  • Chrome has shipped
  • Mozilla is position:positive
• Tests are written and can be reviewed and commented upon at:
  • Chromium only because there's no cross-platform way to change the system-level text preference. https://source.chromium.org/search?q=file:meta&sq=&ss=chromium%2Fchromium%2Fsrc:third_party%2Fblink%2Fweb_tests%2Fwpt_internal%2Fcss%2Fcss-fonts%2F
• Implementation bugs are filed:
  • Chromium: https://crbug.com/430566925
  • Gecko: https://bugzilla.mozilla.org/show_bug.cgi?id=1976522
  • WebKit: https://bugs.webkit.org/show_bug.cgi?id=298029
• Corresponding HTML AAM & ARIA in HTML issues & PRs: N/A
• MDN article is already published.
• The top of this comment includes a clear commit message to use.

(See WHATWG Working Mode: Changes for more details.)

/infrastructure.html ( diff )
/semantics.html ( diff )