body .video-responsive {
    overflow: hidden;
/*    padding-bottom: 56.25%;*/
    padding-bottom: 40%;
    position: relative;
    height: 0;
}

body .video-responsive iframe {
    left: 0;
    top: 0;
/*    height: 70%;*/
    height: 95%;
    width: 70%;
    position: absolute;
    margin: 0;
}