[CSSWG][css-values-4] Updated WD of CSS Values & Units Level 4

The CSS WG has published an updated Working Draft of the !!!!CSS Foo
Module Level #!!!!:

    http://www.w3.org/TR/css-values-4/

This specification defines the CSS property definition grammar, and
the value types that are common across many specs, such as <number> or
<string>.

New to this draft is:
* the introduction of the <ratio> type, used in the new 'aspect-ratio'
property and related Media Queries
* the introduction of a large number of new math functions, such as
round(), sin(), and pow(), and some accompanying numeric constants
* a new src() function, which is identical to url() but requires
quoted strings (which makes it possible for it to take functions that
evaluate to strings, such as attr() or var()).
* a substantially revised definition of the attr() function (with some
substantial pending issues)

Significant changes are listed at:

  https://www.w3.org/TR/2020/WD-css-values-4-20201111/#changes-recent

Please review the draft, and send any comments to this mailing list,
<www-style@w3.org>, prefixed with [css-values-4] (as I did on this
message) or (preferably) file them in the GitHub repository at
https://github.com/w3c/csswg-drafts/issues

For the CSS WG,
Tab Atkins-Bittner

Received on Wednesday, 11 November 2020 20:03:40 UTC