.video-embed {
    width: 100%;
    position: relative;
    overflow: hidden;
    padding-top: 56.85%; /* 16:9 Aspect Ratio (divide 9 by 16 = 0.5625) */
}

.video-embed .responsive-video {
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    width: 100%;
    height: 100%;
}