body {
  background-color: #1f1f1f;
}
h1 {
  text-align: center;
  color: aquamarine;
}
ul {
  list-style: none;
}
ul li {
  display: inline;
}
ul a {
  text-decoration: none;
  font-size: 20px;
  padding: 10px;
  color: blue;
}