#menu {
  background-color: rgba(0, 0, 0, 0.5);
  font: normal 10pt 'Consolas';
  position: absolute;
  top: 0px;
  width: 100%;
}

#menu ul {
  list-style: none;
  margin: 0px auto;
  padding: 0px;
  width: 800px;
}

#menu li {
  background-color: #999999;
  border: 2px solid #999999;
  color: #FFFFFF;
  float: left;
  line-height: 28px;
  margin: 4px 2px;
  text-align: center;
  transition: all 0.5s;
  width: 112px;
}

#menu li:hover {
  background-color: #FF9900;
  border-color: #FF7700;
}

#menu li a {
  color: inherit;
  display: inline-block;
  text-decoration: none;
  width: 100%;
}

#menu li div {
  height: 0px;
  margin-left: -6px;
  opacity: 0;
  overflow: hidden;
  position: absolute;
  transition: all 0.5s;
}

#menu li ul {
  background-color: rgba(0, 0, 0, 0.5);
  margin-top: 6px;
  padding-bottom: 2px;
  width: 100%;
}

#menu li ul li {
  float: none;
  line-height: 20px;
  margin: 0px 4px 2px;
}

#menu > ul > li:last-child {
  float: right;
}