FPWD: CSS Conditional Rules Module Level 4

CSS Conditional Rules Module Level 4

https://www.w3.org/TR/2020/WD-css-conditional-4-20200303/

Abstract

This module contains the features of CSS for conditional processing of parts of style sheets, conditioned on capabilities of the processor or the document the style sheet is being applied to. It includes and extends the functionality of CSS level 2 [CSS21], which builds on CSS level 1 [CSS1]. The main extensions compared to level 2 are allowing nesting of certain at-rules inside @media, and the addition of the @supports rule for conditional processing.  CSS is a language for describing the rendering of structured documents (such as HTML and XML) on screen, on paper, etc.

Status of the Document

This section describes the status of this document at the time of its publication. Other documents may supersede this document. A list of current W3C publications and the latest revision of this technical report can be found in the W3C technical reports index at https://www.w3.org/TR/. 

This document is a First Public Working Draft. 

Publication as a First Public Working Draft does not imply endorsement by the W3C Membership. This is a draft document and may be updated, replaced or obsoleted by other documents at any time. It is inappropriate to cite this document as other than work in progress. 

GitHub Issues are preferred for discussion of this specification. When filing an issue, please put the text “css-conditional” in the title, preferably like this: “[css-conditional] …summary of comment…”. All issues and comments are archived, and there is also a historical archive. 

This document was produced by the CSS Working Group. 

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This document is governed by the 1 March 2019 W3C Process Document.

Received on Tuesday, 3 March 2020 09:57:29 UTC