I need website advice!

Hello everyone.

I'm JUST getting around to designing my own website. I've done a few stupid ones here and there, to inlcude social site layouts. Needless to say... I'm not an expert.

What I want is to write a layout ( in CSS most likely) that doesn't change when the content changes... see gucomics website for an example.

Furthermore, I need all of the content to be hidden unless the user knows a passcode. I'm not interested in full out usernames and passwords requiring a SQL DB. Just a simple word entered when they navigate to my url. They wouldn't be able to see anything until they got it correct. Attempts to bypass the landing page to say "news.html" or "main.html" would result in a redirect to "index.html". I'm not too worried about the security issues this presents. If I think the code has become common knowledge I should be able to change it.

Thoughts? Please respond to this post of via pm/email. Your help would be much appreciated!

P.S. Great site! I've been browsing for awhile.