How to center an element after offsetting it X pixels to the right?

Due to faux columns

[Clark]

I'm using Dan Cederholm's faux column for a left nav column. And I've got a footer that needs to be centered. But since there is a faux column, it looks off center. So I need it centered with an offset to handle the 180px of that faux column. Is there a way to handle this in CSS?

[Clark]

Would
{
margin-left: 180px;
margin-right: auto;
text-align: center;
}
do the trick w/o choking on major browsers? (seems to work where I tested it)

[edited by: Clark at 1:12 am (utc) on Dec. 30, 2007]