html, body{
    min-height: 100%;
    height: 100%;
  }
  
  .fill{
    height: 100%;
  }
  
  body {
    padding-top: 85px; /* space for the top nav bar */
  }

  #video {
    position: fixed;
    top: 55px;
    left: 0px;
    background-size: cover;
    z-index: -100;
  }