[CSSWG][css-cascade-4] Return to WD / Last Call for Comments CSS Cascade L4

The CSS WG has returned the CSS Cascading and Inheritance Module Level 4 to 
Working Draft in order to:
   * Drop scoped styles, which were not implemented
   * Incorporate cascading and inheritance rules pertaining to Shadow DOM,
     which were (but were specced as a patch to Cascade rather than in Cascade)

This is a Last Call for Comments; the CSSWG expects to return the module to CR 
soon. We are requesting comments, or alternately a request for extended time, 
by 20 September 2020. https://www.w3.org/TR/css-cascade-4/

Note: A corresponding updated CR of Level 3 to synchronize editorial fixes has 
also been published: https://www.w3.org/TR/css-cascade-3/

CSS Cascading and Inheritance describes how to collate style rules and assign 
values to all properties on all elements by way of cascading (choosing a 
winning declaration among many) and inheritance (propagating values
from parent to child).

For reference, the additions to Level 4 since Level 3 are listed here:
   https://www.w3.org/TR/css-cascade-4/#additions-l3
and consist of
   * Defining inheritance with shadows to operate on the flattened tree:
     https://www.w3.org/TR/css-cascade-4/#inheriting
   * Adding encapsulation contexts (such as shadows) to the cascade sort:
     https://www.w3.org/TR/css-cascade-4/#cascade-sort
   * Defining aliasing mechanisms:
     https://www.w3.org/TR/css-cascade-4/#aliasing
   * Adding global revert keyword:
     https://www.w3.org/TR/css-cascade-4/#default
   * Adding supports() conditional to @import:
     https://www.w3.org/TR/css-cascade-4/#at-import

Please review the draft, and send any comments to the CSSWG mailing 
list,<www-style@w3.org>, prefixed with [css-cascade-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 CSSWG,
~fantasai

Received on Thursday, 20 August 2020 23:12:42 UTC