That I don't really have... all the CSS I know I learned from books, reference sites (like http://www.blooberry.com/indexdot/css/index.html ), the CSS specs (W3C), and a little experimentation.
If you need some hands on examples, a good place to start is bluerobot.com, and some of the links it has.
If you've never done any positioning via CSS before, check out the blooberry site listed above, look for 'position', 'top', 'left', and so on in the index.
I could probably ramble on about CSS nearly forever, but I've got an idea I need to smash out in Kxmleditor and also the meetup tonight.
Good luck!