@media screen {

.ym-column {
display: block;
overflow: hidden;
padding-left: 0px; /* column width */
width: auto;
}
.ym-col1 { width: 180px;} /* sidebar */
.ym-col3 { margin-left: 180px; margin-right: 0; }

  .haupt {
  background-repeat:  repeat-y;
  background-position:  0px 0px;}

}