.hidden_text_head
{
  cursor: pointer;
  background: #fff url(/html/sys-img/plus.gif) no-repeat 5px ;
  border: 1px solid #abc;
  padding-left: 20px;
  text-align: left;
}
.hidden_text_head_
{
  cursor: pointer;
  background: #fff url(/html/sys-img/minus.gif) no-repeat 5px ;
  border: 1px solid #abc;
  padding-left: 20px;
  text-align: left;
}
.hidden_text_post
{
  display: none;
  border: 1px solid #abc;
  border-top: 0px solid #abc;
  padding: 5px;
}