Adding a fluid footer

Hi,

I’m tinkering with my theme and I’d like to make the footer fluid. I’ve added a 100% width but it’s still not ok. It looks like this:

http://www.image-hoster.org/image-6DE5_5052E9C6.jpg

You can see that there is a small area on the bottom, and the left, right side.

What am I doing wrong?

Thanks