DIV.expandable_content {
  overflow:hidden;
  padding-left: 0px; 
  padding-bottom: 5px;
}
DIV.hidden {
  display:none;
}
DIV.showing {
  display:block;
}
A.expandable_menu:hover {
  background:#eeeeee;
}
A.expandable_menu {
  cursor: hand;
  padding-left: 0px; 
  color:#006f53;
  text-decoration:underline;
}