body {
  font: normal 11px verdana;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
  width: 100%;
}

li {
  width: 120px;
  z-index: 1000;
}

ul li {
  position: relative;
  float: left;
}

li ul {
  position: relative;
  left: 0;
  top: 0;
  display: none;
}

ul li a {
  display: block;
  text-decoration: none;
  color: #ffffff;
  background: #4f4f2f;
  padding: 5px;
  border: 1px solid #ccc;
  border-bottom: 0;
}

#site {
  position: absolute;
  top: 50px; 
  width: 960px; 
  left: 0;
}

/* Holly Hack. IE Requirement \*/
* html ul li { float: left; height: 1%; }
* html ul li a { height: 1%; }
/* End */

li:hover ul, li.over ul { display: block; } /* The magic */