.video-hero{
    height: 300px; background-image: url(https://images.unsplash.com/photo-1575467252250-c0e889b69d2b?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=948&q=80);  background-size:cover; background-position: center center;background-attachment:fixed;position: relative;
    background-repeat: no-repeat;
    z-index: 0;
}