.jumbotron{
 background-image: url('/_new2018/images/growth/growth-commission-report.jpg');
 background-size: cover;
 background-repeat: no-repeat;
 background-position: center center;
 position: relative;
 z-index: -2;
}


.overlay {
  background-color: #000;
  opacity: 0.5;
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  z-index: -1;
}