I don't see A List Apart mentioned - it has a lot of great content, but has perhaps become less relevant as CSS has stabelized quite a bit. But articles like:

I don't see A List Apart mentioned - it has a lot of great content, but has perhaps become less relevant as CSS has stabelized quite a bit. But articles like: https://alistapart.com/article/braces-to-pixels/ https://alistapart.com/article/braces-to-pixels/ still help get a good overview of how CSS work - and might be good in addition to more pragmatic guides on how to use tailwind etc.