Many stupid basic questions

I've taught myself most of what I know about HTML by viewing the source for
web pages that I like the look of, and experimenting. However there are a
lot of things that I've run into on this list and elsewhere that I have
absolutely no idea what they are or how to use them. CSS is a great example.

(One of the s/w apps I use at work is called CSS, which I find amusing since
it has nothing to do with HTML or the web.)

So... my questions...

1) What g'zactly is CSS and how do you use it with respect to web sites?

2) What is CGI?

3) What are META tags?

4) How do you use keywords?

5) How do you do forms?

More questions later, as I think of them. Please feel free to respond
privately as well as publically.

--IceWolf

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