.blok {
   border-top-width: 6px;
   border-top-style: solid;
   border-top-color: #ffffff;
   float: left;
}

.item {
   float: left;
   display: block;
   width: 200px;
   min-height: 400px;
   height: auto;
   margin-left: 11px;
}


.item-rechts {
   float: left;
   display: block;
   width: 200px;
   min-height: 400px;
   height: auto;
   margin-left: 15px;
}