#intro_banner {
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    min-height: 100vh;
    color:#aaa;
    /* background-color: #040036; */
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    /* background-color: #040036; */
  }
  
  .topnav {
    overflow: hidden;
    background-color: #333;
  }
  
  .topnav a {
    float: left;
    color: #f2f2f2;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
    font-size: 17px;
  }
  
  .topnav a:hover {
    background-color: #ddd;
    color: black;
  }
  
  .topnav a.active {
    /* background-color: #999; */
    color: white;
  }