Today I'd like to write down a little trick I've been using for years in some of my sites, it's about using CSS to float an image or an adsense block so that the text flows around it.

But as you may know, one of the issues with this float:left or float:right is that the text will flows on the side and below, but not above.
So how to have the floated image inside the text, so that it flows around it?