.guten-M5T6uO video, .guten-M5T6uO .guten-video-background { width: 26%!important; height: 596px!important; } @media only screen and (max-width: 767px) { .guten-M5T6uO video, .guten-M5T6uO .guten-video-background { width: 100%!important; height: 546px!important; } }