#menu ul{
  height: 19px;
}

#menu li {
  font-size: 1em;   
  float: left;
  height: 19px;     
  width: 106px; 
  text-align: center;  
}

#menu ul, #menu ul.sub {
  list-style-type:none; 
  margin: 0; 
  padding: 0;
}

#menu ul.sub li {
  height: 19px;
}

#menu li, #menu ul.sub li {
  margin: 0; 
  padding: 0;
}

#menu ul.sub li {
  display: block; 
  width: 100%; 
  margin:0; 
  padding: 0;
}

#menu ul.sub li a {
  display: block; 
  margin: 0; 
  width: 106px; 
  background-color: #CCFF66;
}

#menu ul.sub li > a {
  width: 106px;
}

#menu ul.sub li a:hover {
  background-color: #336600;
  color: #FFF; 
}

#menu ul li.main {
  position: relative;
}

#menu ul li > ul.sub {
  position: absolute; 
  z-index:10; 
  visibility: hidden;
}

#menu ul li.main:hover ul.sub {
  visibility: visible;
}

ul.sub{
  position: absolute; 
  z-index:10; 
  visibility: hidden; 
} 
li.mainHover ul.sub{
  visibility: visible;
}