Abstract
This specification defines modifications to the existing CSS Fonts 3 specification along with additional features for font feature control, font variations, and chromatic (color) fonts.
CSS is a language for describing the rendering of structured documents
(such as HTML and XML)
on screen, on paper, etc.
This is a public copy of the editors’ draft.
It is provided for discussion only and may change at any moment.
Its publication here does not imply endorsement of its contents by W3C.
Don’t cite this document other than as work in progress.
Please send feedback
by filing issues in GitHub (preferred),
including the spec code “css-fonts” in the title, like this:
“[css-fonts] …summary of comment…”.
All issues and comments are archived.
Alternately, feedback can be sent to the (archived) public mailing list
www-style@w3.org.
This document is governed by the
18 August 2025 W3C Process Document.
The following features are at-risk, and may be dropped during the CR period:
“At-risk” is a W3C Process term-of-art, and does not necessarily imply that the feature is in danger of being dropped or delayed. It means that the WG believes the feature may have difficulty being interoperably implemented in a timely manner, and marking it as such allows the WG to drop the feature if necessary when transitioning to the Proposed Rec stage, without having to publish a new Candidate Rec without the feature first.