ul.topnav {    
    float: right;
    list-style: none;
    padding: 0;
    margin: 0;
    height: 35px;
    font-size: 11px;    
    opacity: 0.95;
/*    background: url(../images/nav_bg.jpg) repeat-x bottom;*/
    background-color: transparent;
    position: relative;
    z-index: 1;
}