The nesting is only one level deep. Let's add the stylesheet definition below. IE5.0 colored all the way out to the right margin. NN4.7 colored only directly behind the text. NN6.0 colored all the way across the page to the right margin, and also colored in the bullet area.
All versions are blue boxes constrained with a width.
NN4.7 is showing the borders around each UL element, but that's alright. In the next section, we will try to control more style elements in the list.