.bg-with-opacity .banner-img::before {
  background: rgba(0,0,0,.3);
}
  
@media (max-width: 991.98px)
{
  .bg-with-opacity .banner-img::before {
    background: rgba(0,0,0,0);
  }
  .path-frontpage .bg-with-opacity .banner-img::before {
    background: rgba(0,0,0,.3);
  }
}