li.exp_active {
  list-style-image:url("plus.png");
  margin-top:10px;  
  margin-bottom:10px;
  background-color:#eeeeff;
  cursor:pointer;
}

li.col_active {
  list-style-image:url("minus.png");
  margin-top:10px;
  margin-bottom:10px;
  background-color:#eeeeff;
  cursor:pointer; /* if not included, bullets are not shown right in moz*/
}


li.basic_active {
  list-style:square;
  list-style-image:none;
  background-color:#eeeeff;
  margin-top:2px;
  margin-bottom:2px;
}