Re: [w3ctag/design-reviews] CSS Overflow Navigation Controls (Carousels) (Issue #1037)

delucis left a comment (w3ctag/design-reviews#1037)

Apologies if this is the wrong place to mention this, but this discussion seemed to be the main one I could find relating accessibility to this new CSS API.

A question I had while evaluating the new `:target-current` pseudo-class was whether it will be reflected in the accessibility tree in some way. We have a table of contents implementation using JS that in theory `:target-current` and `scroll-target-group` would be able to replace. Currently, we use `aria-current="true"` to highlight the current item in a table of contents. As far as I can tell (at time of writing, in Chrome 144), `:target-current` is not exposed with a similar “current item in group” semantics in the accessibility tree.

Should links matching `:target-current` receive some similar semantics in the AT?

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