Help out an FNG

This is my first time posting a "discussion starter", so I apologize if it wound up in the wrong spot. I'm doing some website development using an external stylesheet. No matter how I try, setting the font type and assigning a background image won't go together, I can do 1 or the other. I would like to solve this if possible, even if I try and use an interal stylesheet, I can still only do 1 or the other. Please give me some help.

Frustrated