[Plone-UI] setting images in css

[Nate Lowrie]

I am doing my own css sheet for Plone.  I have a background image that
I want to use.  Currently, I have the following CSS entry:

body
{
    background: url('background.png') repeat;
}

I know the path information is wrong.  Can anyone tell me what it
needs to be?  Thanks.

Nate L.