style.css

body {
    color: #3dc12f;
    font-family: 'Liberation Mono', 'Consolas', monospace;
    background-image: url("https://static.tildacdn.com/tild3939-3432-4636-b562-383133353233/51aea3393b8234a1e69d.gif");
  }

  h1 {
    font-size: 24px;
    text-align: center;
  }

  p {
    font-size: 13px;
    text-align: center;  
  }

  ul {
    font-size: 13px;
    text-align: center;
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #333;
  }

  li {
    float: left;
  }

  li a {
    display: block;
    color: #3dc12f;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
  }
  
  li a:hover {
    background-color: #111;
  }

  .active {
    background-color: teal;
  }

  li.dropdown {
    display: inline-block;
  }

  .dropdown-content {
    display: none;
    position: absolute;
    background-color: #333;
    min-width: 94px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 1;
  }
  
  .dropdown-content a {
    color: #3dc12f;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    text-align: left;
  }
  
  .dropdown-content a:hover {background-color: #111;}
  
  .dropdown:hover .dropdown-content {
    display: block;
  }