05.12.2012, 12:13
No, I don't recomment it. HTML and CSS; Java are totally different languages and it's waste of time. I already knew HTML, but when I started using Pawn language I saw a lot of differences. Everything you need is to read all the documentations from "Main Page - SA:MP Wiki" and especially at the scripting Section. First of all, start reading the Scripting Basics, because they will need them and the rest will come day by day.