Render nested list like a tree

Question

How would I make the vertical border in this stop at the last element?

It can be CSS3/modern browser compatible only. But needs to work on various backgrounds (i.e. be transparent).

http://jsfiddle.net/ShgD6/

From this:

To this:

Answer 1

I solved this via modifications to the css in this fiddle:

http://jsfiddle.net/YYdwc/2/