.bilder
 {
    width: 150px;
    padding: 3px;
    margin: 2px;
    border-width:1px;
    border-style:solid;
    border-color:#808080;
    margin-top:8px;
    margin-bottom:8px;
    margin-left:8px;
    margin-right:8px;
 } 

div#gallerie {
margin-left: 5px; 
margin-top: 20px;
margin-bottom: 20px;   
}
 
div#gallerie a img:hover{
 opacity: .6;
 -ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=60)"; /* IE8 */
 cursor: zoom-in;
}