Mentioned:
MDN CSS
https://developer.mozilla.org/en-US/docs/Web/CSS
DevDocs CSS
https://devdocs.io/css
CSS Tricks
https://css-tricks.com
CSS Reference
https://cssreference.io
147 Named Colors in CSS
https://htmlcolorcodes.com/color-names
https://en.wikipedia.org/wiki/Web_colors
Philip Guo on HTML Energy
https://html.energy/philip.html
“Why Is CSS So Weird?” by Miriam Suzanne of Mozilla
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Example code:
https://laurelschwulst.github.io/literature.works-css
https://github.com/laurelschwulst/literature.works-css
https://laurelschwulst.github.io/my-website-is-a-shifting-house
https://github.com/laurelschwulst/my-website-is-a-shifting-house
***
My other tutorials:
HTML Basics
source