I'm new in CSS and saw some cool menus. When I tried to download the images they've used I figure out that they are using two images on every single list on their menu. For example, I have the menus "Home", "Services", "Contacts". Definitely there's 3 list on the menu. on the "home" they are using two images using css. I was wondering what is the basic to do that? It's like concatinating two images to form 1 on the browser. Any help will be greatly appreciated.