.nav_left { margin-top:2px; width:10px; background:url(../images/nav_left.jpg) no-repeat; } .nav_mid { width:980px; background:url(../images/nav_bg.jpg) repeat; } .nav_right { width:10px; background:url(../images/nav_right.jpg) no-repeat; } .nav_left,.nav_mid,.nav_right { height:40px; float