body {
    font-family: sans-serif;
    font-size: 16px;
  }
  
  h1 {
    text-align: center;
  }
  
  ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
  }
  
  li {
    display: inline-block;
    margin-right: 10px;
  }
  
  a {
    text-decoration: none;
    color: black;
  }