Dissapearing the Image on eCommerce

Hi

Is there any way to delete the image on the eCommerce template (the image at the top with the trolley full of stuff)? I would prefer to have no image there.

I deleted both header_bg (jpeg) and header_bg (png) but this didn't work, the image still showed on the frontend.

Thanks

layout.css:

.contact_details {
float: left;
text-align: right;
width: 475px;
height: 115px;
overflow: hidden;
background: url(../images/header_bg.png) no-repeat;
}

remove background property

Thanks.