body {
    margin:0;
    font-family:Arial;
  }
  
  .topnav {
    overflow: hidden;
    background-color: transparent;
    margin: 10px;
  }
  
  .topnav a {
    float: left;
    display: block;
    color: black;
    text-align: center;
    padding: 10px 18px;
    text-decoration: none;
    font-size: 17px;
    margin-left: 12px;
  }
  
  .active {
    background-color: lightblue;
    color: white;
    border-radius: 8px;
  }
  
  .topnav .icon {
    display: none;
  }
  
  .dropdown {
    float: left;
    overflow: hidden;
    margin-left: 12px;
  }
  
  .dropdown .dropbtn {
    font-size: 17px;    
    border: none;
    outline: none;
    color: black;
    padding: 10px 18px;
    background-color: inherit;
    font-family: inherit;
    margin: 0;
  }
  
  .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;
    border-radius: 8px;
  }
  
  .dropdown-content a {
    float: none;
    color: black;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    text-align: left;
    margin: 5px;
  }
  
  .topnav a:hover {
    background-color: #ddd;
    border-radius: 8px;
  }