Padding not found in my style.css

I’m trying to use firebug to find where this code is:

element.style {
display:block;
padding-left:221px;

This is located on my navbar, which I want aligned to the left. Removing the 221px padding accomplishes this.

Apparently it’s not in my style.css file. My website is http://bit.ly/a0zRfD

Any help would be greatly appreciated!