#distance
{ width:1px;
  height:50%;
  margin-bottom:-265px; /* halbe container-höhe */
  float:left;
}

#container
{ margin:0 auto;
  position:relative; /* legt container vor distance */
  text-align:left;
  height:530px;
  width:1020px;
  clear:left;
}

#mitte
{ position:absolute;
  top:50%;
  left:50%;
  width:1020px;  margin-left:-510px;
  height:530px;  margin-top:-265px;


}