What are tips for remembering CSS syntax and tags?

Question

I have just finished module 7, but I can't remember a thing about CSS.

Answer 1

learning by doing
design some webs then you will remember it automaticly.

Answer 2

review or look here at: https://www.w3schools.com/cssref/default.asp
it is a CSS Reference :D

Answer 3

both answers right.
Practice more+look up in reference to check how exectly somethin' works.