#navmuens{border-top:solid 2px; height:113px;}
.muenscell
{ 
    border:solid 1px black;
    border-top-style:ridge; 
    border-top-color:Silver; 
    float:left; 
    width:318px; height:110px;
    background-image: url(../img/navmuens_bg_2.png);
    background-repeat: repeat-x;
}