DropDownMenu.css

body {
  font-family: 'Times New Romans', Georgia, serif;
  padding: 20px 50px 50px;
  font-size: 100px;
  text-height: 75px;
  text-align: center;
 }

ul {
  text-align: center;
  display: block;
  min-width: 350px;
  margin: 0;
  padding: 0px 0px 47px 0;
  list-style: none;
  background-color: #001A57;
  color: white;
  
  -webkit-box-shadow: 0 0 5px rgba(0, 0, 0, 0.15);
  -moz-box-shadow: 0 0 5px rgba(0, 0, 0, 0.15);
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.15);
}

ul li {
  font: bold 30px sans-serif;
  display: inline-block;
  margin-right: -4px;
  position: relative;
  padding: 15px 15px;
  background: #001A57
  cursor: pointer;
  -webkit-transition: all 0.2s;
  -moz-transition: all 0.2s;
  -ms-transition: all 0.2s;
  -o-transition: all 0.2s;
  transition: all 0.2s;
}

ul li:hover {
  background: #02267a;
  color: #fff;
}

ul li ul {
  padding: 0;
  position: absolute;
  top: 48px;
  left: 0;
  width: 350px;
  -webkit-box-shadow: none;
  -moz-box-shadow: none;
  box-shadow: none;
  display: none;
  opacity: 0;
  visibility: hidden;
  -webkit-transition: opacity 0.2s;
  -moz-transition: opacity 0.2s;
  -ms-transition: opacity 0.2s;
  -o-transition: opacity 0.2s;
  -transition: opacity 0.2s;
}

ul li ul li {
  background: #02267a;
  display: block;
  color: #fff;
  text-shadow: 0 -1px 0 #000;
}

ul li ul li:hover {
  background: #3a5ac9;
}

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