Baby-steps, and hand holding, which is what I got at s2smoothsailing when I was tweaking my LJ layout. They taught me how to have bullets - actual small bullets - show up when hovering over the header navigation [mine is a Western fandom :) ].

I really enjoy css, and whenever I'm afraid to change something, I just make a copy of the files involved - that way I don't risk the originals. I don't remember seeing css tutorials at mobileread; is there a forum or were these snippets mostly offers from other members?