.bar {
    list-style-type: none;
    margin: auto;
    padding: 0;
    overflow: hidden;
    background-color: #333;
    text-align: center;
  }
  
  li {
    float: none;
  }
  
  li a, .dropbtn {
    display: inline-block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
  }
  
  li a:hover, .dropdown:hover .dropbtn {
    background-color: red;
  }
  
  li.dropdown {
    display: inline-block;
  }
  
  .dropdown-content {
    display: none;
    position: absolute;
    background-color: #f9f9f9;
    min-width: 160px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 1;
  }
  
  .dropdown-content a {
    color: black;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    text-align: left;
  }
  
  .dropdown-content a:hover {background-color: #f1f1f1;}
  
  .dropdown:hover .dropdown-content {
    display: block;
  }