CSS is something else that I found fairly easy to learn once I got started. I self-taught myself CSS as well using websites, tutorials, videos and also via trial and error.
How long did it take you to learn CSS? Did you find it easy or difficult?
I first of all started by making use of free resources like the freecode camp and YouTube. Then I eventually too professional course of Udemy and offline.
There are quite a few tutorials on the Internet, but you have to be cautious: with tutorials, you learn bits of the language without understanding the general concepts. However, some sites like OpenClassrooms or StylesCSS offer complete courses, or at least a coherent series of tutorials.