.video-container {
    position: relative;
    padding-bottom: 30%;
    padding-top: 10px; height: 10px; overflow: hidden;
}
    .video-container iframe,
    .video-container object,
    .video-container embed {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}