.video-banner { position: relative; }
.video-banner .video video,
.video-banner .image img { width: 100%; height: 100%; object-fit: cover; vertical-align: middle;     min-height: 400px;}



@media screen and (max-width:749px){
 .video-banner .video video,
.video-banner .image img {  min-height: 300px;}   
}