image repeat?

[5th-Level]

How do I make a single image repeat horizontally on the header template?

THIS IS NOT THE BACKGROUND IMAGE!

The image is http://www.vbskinshop.com/forum/images/unknown/misc/header_extend.gif

[Princeton]

The CSS background (http://www.w3schools.com/css/css_background.asp) properties define the background effects of an element.