HTML & CSS question...

Aloha kakou!

I've been playing and have at least some of the basics down...I need to learn how to set a margin when using text wrap...anyone have any luck with it? Maybe give me a nudge in the right direction? Here's what I've done so far;

http://www2.hawaii.edu/~mesulliv/

Any comments? sugguestions? snide remarks?

A hui hou i ka Po'alua,
michael