Only some of the Web 1.0 button icons actually press in; for example, the button to read a post’s comments from a community does not press in when you tap it. That would be neat to have; might as well go all the way with this nice retro theme, right?

Edit: and, apparently, even the “Post” and “Update” buttons when submitting and editing posts… They only press in if you press-hold on them, not tap.