-
Who Queries the Feature Queries? @supports not ( @supports selector() ) { … } It's not a good idea, but it is AN idea - so that's something, right? Conditionals all the way down.
-
Then again, you can test for support of a feature query by checking the most-supported feature: @supports (color: red) { /*✅*/ } @supports selector(p) { /*✅*/ } So ¯\_(ツ)_/¯ just have to avoid negative conditions. Nothing new there.