.video-tbt-optimizer {
    z-index: 2;
    text-align: center;
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
}
.video-tbt-optimizer img {
    width: 100%;
}
.video-tbt-optimizer iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100% !important;
    height: 100% !important;
}