.section-video,
.row-video,
.col-video {
    position: relative;
}
.bg-video {
    width: 100%;
    height: 100%;
    position: absolute;
    z-index: 0;
    top: 0;
}
div#content .col-lg-2:nth-child(6n + 1),
#content .col-lg-2:nth-child(6n + 1),
#content .col-lg-3:nth-child(4n + 1),
#content .col-lg-4:nth-child(3n + 1),
#content .col-lg-6:nth-child(2n + 1) {
    clear: none;
}