body {
  background-color: #e6f5ff;
  text-align:center;
}

h1 {
  color: #0070ba;
}

p  {
  font-size: 20px;
  color: #0070ba;
}

ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background-color: #333;
}

li {
  float: left;
}

li a {
  display: inline-block;
  color: white;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
}

li a:hover {
  background-color: #3b61eb;
}

.active {
  background-color: #3b61eb;
}