ul#top_menu {
  list-style-type: none;
  padding: 0px;
  margin: 0px;
}
ul#top_menu li {
  float: left;
}

a.top_menu {
  padding: 0 5px 0 5px;
  border-right: 1px solid #999999;
  display: block;
}


.top_sub_menu {
  position: absolute;
  display: block;
  visibility: hidden;
  border: 1px solid black;
  border-top-width: 0;
  z-index: 100;
  background-color: #F4F3EF;
  width: 200px;
}

.top_sub_menu a {
  width: 100%;
  display: block;
  border-top: 1px solid black;
  padding: 4px 0 4px 5px;
  text-decoration: none;
}