div.blockHolder
{
  position:absolute;
  z-index:20;
  top:11px;
  left:10px;
  overflow:hidden;
  background-color:white;
}
td#middleColumn div.blockHolder
{
  width:432px;
  height:215px;
}
td#leftColumn div.blockHolder,
td#rightColumn div.blockHolder
{
  width:250px;
  height:212px;

}
td#leftColumn div.blockHolder.double,
td#rightColumn div.blockHolder.double
{
  height:455px;

}