ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  background-color: #485779;
  display: flex;
  width: 500;
  justify-content: center;
}

h1 {
    border: 2px solid #f7f9f9;
    border: 5px;
}

body {
    background-color: #5f95c7;
    margin: 0;
    padding: 0;
}

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

ul li a:hover {
  background-color: #78cad2;
}