In other words, Safari will ignore your CSS :hover rules in visionOS (proving, again, the powerful idea of thinking of your CSS as suggestions for the browser rather than instructions – something I first heard from Jeremy quoting Eric).

[…]

Its 2023 and would you look at that: semantic, accessible HTML is still as important as ever. HTML isnt just for old beige tower computers connected to cathode-ray tube monitors. Its being relied on by the most technologically advanced AR/VR consumer device in 2023.

Source: Thoughts from “Meet Safari for Spatial Computing”

Suggestions, not instructions. That’s a powerful way to think about CSS. And some people want to replace CSS with JavaScript!

Regarding HTML, it’s funny: the more things change, the more they stay the same.