Re: [csswg-drafts] For the Accessibility API visibility:visible within visibility:hidden is problematic (#6123)

Proposal:
* Import 'visibility' from CSS2 to css-display-3 (since it is currently only defined in CSS2).
* Define impact of `visibility: hidden` similar to `display: contents` (shouldn't strip necessary a11y information from the tree).
* Add a warning to authors that marking a required structural parent box as invisible while descendants are visible (e.g. table-row invisible while table-cell is visible) can be problematic.

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Received on Thursday, 5 August 2021 23:34:56 UTC