/* Keep the original embed ratio while fitting the available content width. */
.lfs-responsive-video {
    width: 100%;
    position: relative;
    padding: 0;
}
.lfs-responsive-video > iframe,
.lfs-responsive-video > object,
.lfs-responsive-video > embed {
    box-sizing: border-box;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}