So here's a fun one. You know the "hidey-bar" pattern: header hides when you scroll down, reappears when you scroll up? CSS can do that now with scroll-state(scrolled). And scroll-padding makes sure anchor links don't get buried behind the header.

Except... clicking an anchor doesn't trigger scroll-state. The header doesn't know you just navigated. scroll-padding reserves space for a header that isn't there. Everything goes out of sync.

I filed a CSSWG issue about it: https://github.com/w3c/csswg-drafts/issues/13787