/* body {
    margin-left: 100px;
    margin-right: 100px;
}
footer {
    text-align: center;
    margin-top: 3em;
}
header {
    text-align: center;
    margin-top: 1em;
    margin-bottom: 3em;
}
h1, h2 {
    color: #333;
  }
  
  ul {
    list-style-type: none;
    padding: 0;
  }
  
  ul li {
    margin: 5px 0;
  }
  
  a {
    color: #1a73e8;
    text-decoration: none;
  }
  
  a:hover {
    text-decoration: underline;
  }
  
  pre {
    background-color: #f4f4f4;
    padding: 10px;
    border-radius: 5px;
  }
nav {
  font-size: 1.3em;
}
   */