2.2.1. CSS Layout and Positioning

This is an example for a floaty.

The W3C recommends using CSS2-based layout instead of the traditional table-based layout.
The problem is that while some things are much simpler with CSS 2. (for instance, the floaty on this page.), some simple table-based layouts are incredibly hard. (especially to get to work on all browsers)
CSS positioning is (IMHO) complicated. I was not able to get the complete hang of it. You can play with it, or try to consult the CSS-d mailing list, until it seems right. (just don't forget to test on all browsers).