/* Add a black background color to the top navigation */
.topnav {
    background-color: #000000;
    overflow: hidden;
    z-index: 2;
  }
  
  /* Style the links inside the navigation bar */
  .topnav a {
    float: left;
    color: #f2f2f2;
    text-align: center;
    padding: 30px 150px 30px;
    text-decoration: none;
    font-size: 17px;
  }
  
  /* Add a color to the active/current link */
  .topnav a.active {
    background-color: #000000;
    color: white;
  }