I can't set the width of my header!

[alhakeem2001]

wonder if that possible to extend the width of my header logo to the right by setting a background image which will fill in the rest of the header ! I know that would be in in css and thats what I did but it didn't work with me :

 

 

 

TD.headerInfo {

font-family: Tahoma, Verdana, Arial, sans-serif;

font-size: 12px;

background: #00ff00;

background-image : url(/images/skater-discount-banner-bg.jpg);

color: #ffffff;

font-weight: bold;

text-align: center;