the current design is pretty limited in that it only expects/supports there to be four pseudo-classes, not the more-than-four WebKit supports have nowadays
Pull request: https://github.com/WebKit/WebKit/pull/1557
Committed r295623 (251628@main): <https://commits.webkit.org/251628@main> Reviewed commits have been landed. Closing PR #1557 and removing active labels.
<rdar://problem/95350076>
*** Bug 222644 has been marked as a duplicate of this bug. ***
*** Bug 222645 has been marked as a duplicate of this bug. ***