h1 {
  font-size: 40px;
  margin: 100px 0 20px;
  text-align: center;
  text-shadow: 0 2px 0 #fff;
}


ul {
  margin: 20px auto;
  padding: 0;
  width: 620px;
}

ul li {
  float: left;
  padding: 0 20px;
  list-style-type: none;
}

ul li a {
  background-color: #c5d9dd;
  color: #414D59;
  font-size: 40px;
  padding: 8px;
  text-decoration: none;
  text-shadow: 0 2px 0 #fff;
}

ul li a:hover {
  background-color: #414D59;
  color: #fff;
  text-decoration: none;
  text-shadow: 0 2px 0 #333;
}

ul:after {
  content: ".";
  clear: both;
  display: block;
  height: 0;
  visibility: hidden;
}