A quick visual guide to CSS Grid properties and values.
Neither matters all that much and you can use every method on the same project without the universe imploding.
Some interesting approaches in the comments too.
This is a really clear explanation of how CSS works.
A whole lotta CSS properties and values gathered together in one place. The one-page view is a bit overwhelming, but search and collections can get you to the right bit lickety-split.
Harry demonstrates a really good use for CSS custom properties—allowing users to theme an interface.
I think I concur with this list. Although I guess it’s worth remembering that, given the size of the CSS spec, this isn’t an overly-long list.
It’s interesting that quite a few of them are about how things are named. It’s almost as if that’s one of the, say, two hardest things in computer science.