body 
{ 
  margin-bottom: 0;
  margin-left: 0;
  margin-right: 0;
  padding-left: 0;
  padding-right: 0;
  background-image: url(images/witmarb.gif);
  
}
#header 
{
  margin: 20px;
  padding: 10px;
  height: 100px;
}
#left 
{
  position: absolute;
  left: 15px;
  top: 160px;
  width: 200px;
}
#center 
{
  top: 0;
  margin-left: 230px;
  margin-right: 230px;
}
#right {
  position: absolute;
  right: 15px;
  top: 160px;
  width: 200px;
}