#slider ul, #slider li {
   margin: 0;
   padding: 0;
   list-style: none;
}

#slider li {
   width: 960px;
   height: 250px;
   overflow: hidden;
   text-align: center;
}

#referenzen ul, #referenzen li {
   margin: 0;
   padding: 0;
   list-style: none;
}

#referenzen li {
   width: 150px;
   height: 120px;
   overflow: hidden;
   text-align: center;
}