Is that a trick question? I learned enough CSS to take Burke & Wells' design and render it with CSS, rather than HTML tables.
That probably came off sounding like a jibe, but I was actually just curious. You are a man of many talents, not all of them, apparently, questionable. My question was prelude to this one: any suggestions about basic tutorials on the web? This is purely a matter of curiosity, so I'm not looking for a definitive answer.
I think I just googled around when I was trying to learn it. I have no special knowledge.