CSS Text Decoration Module Level 3

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-text-decor” in the title, like this: “[css-text-decor] …summary of comment…”. All issues and comments are archived. Alternately, feedback can be sent to the (archived) public mailing list [email protected].

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:

• The ability to place both emphasis marks and ruby on the same base text.

“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.