#navigation {
  background-color: #eee;
}

#navigation ul {
  margin: 0;
  padding: 0; 
}

#navigation li {
  border-right: 1px solid #ddd;
  display: block;
  float: left;
  margin: 0;
}

#navigation li:last-child {
  border-right-width: 0;
}

#navigation a {
  background-color: #eee;
  color: #333;
  display: block;
  padding: .75em 1.5em;
  text-decoration: none;
  transition: all .25s ease-in-out;
  -moz-transition: all .25s ease-in-out;
  -webkit-transition: all .25s ease-in-out;
}

#navigation a:hover {
  background-color: #ddd;
}

.clearfix {
  overflow: auto;
  zoom: 1;
}
.clearfix:after, 
.clearfix:before {
  content: ' ';
  display: table;
}

.clearfix:after {
  clear: both;
}  

#navigation ul li div {
  background-color: #eee;
  border-top: 0;
  display: none;
  margin: 0;
  opacity: 0;
  position: absolute;
  width: 13em;
  visibility: hidden;
  z-index: 100;
	
  -webkit-transiton: opacity 0.2s;
  -moz-transition: opacity 0.2s;
  -ms-transition: opacity 0.2s;
  -o-transition: opacity 0.2s;
  -transition: opacity 0.2s;
}

#navigation ul li div ul li {
  float: none;
  border-right: 0;
}
	
#navigation ul li div ul li a {
  display: block;
  color: #333;
  padding: 12px 24px;
  text-decoration: none;
}
	
#navigation ul li div ul li:hover > a {
  background-color: #ddd;
}

#navigation ul li:hover div {
  display: block;
  opacity: 1;
  visibility: visible;
}