Potential need for a new CSS pseudo-class for role matching

[digilou]

This was submitted as an issue in the CSS-A11y repo by @jnurthen. On 27 Jan 2021, APA suggested bringing this to the CSS-WG to discuss as a CSS issue. May need joint collaboration with ARIA and APA.

[Crissov]

A :role() proposal is already tracked in #3596. A semantic role selector is certainly better than something like regex selectors, #1008 vs #1010. An open question is whether it makes more sense to introduce, for instance, :role(heading) than :heading.

[digilou]

Thank you @Crissov. I should've done a search! APA didn't want to lose the idea, but clearly it's been discussed and remains open.

[jnurthen]

Note - this was not my issue. I simply copied the issue from an old aria issue (before we had the ability to move GitHub issues from one repo to another). All of this is noted in the issue.

[astearns]

Closing as duplicate of #3596