What's Your Favourite Resources for CSS? (Top 3 links)

Question

Best layouts, button styling, animations & transitions - where do you go?

Answer 1

Thanks @nura. I kind of meant...
https://www.w3schools.com/css/
https://gridbyexample.com/
http://www.htmldog.com/guides/css/

Keen to see other "go-to" resources community is using. Thanks

Answer 2

width, height and bg-color