[css-values][css-transforms][css-motion][css-background] Updated <position>

Tab and I just pushed the changes to drop the 3-value syntax from <position> per
   https://lists.w3.org/Archives/Public/www-style/2017Feb/0052.html
The canonical reference is now (again) in CSS Values and Units 3.
   https://drafts.csswg.org/css-values-3/#position

This implies changes to object-position, mask-position, radial gradients,
and offset-position. It also makes <position> available for use in
transform-origin and perspective-origin.

(Note, if implementers want us to also drop from background-position, I'm sure the
CSSWG could consider that as well if presented with compelling Web-compat data
indicating no problems... but we've otherwise special-cased background-position as
superset syntax that includes the 3-value clauses.)

We would like to request

A. Review of the altered syntax definition.
and subject to approval of A,
B. Republication of css-values-3.
      https://drafts.csswg.org/css-values-3/#changes
C. Republication of css-backgrounds-3.
      https://drafts.csswg.org/css-backgrounds-3/#changes-2014-09
D. Republication of motion-1 (which is soooooo overdue for publication).
       https://drafts.fxtf.org/motion/ vs https://www.w3.org/TR/motion-1/
E. Pending Transform edits and state of general coherence, republication of Transforms.

Thanks~
~fantasai and TJ

Received on Wednesday, 15 March 2017 19:59:09 UTC