.section {
    position: relative;
    margin: 60px 0;
    padding: 60px 0;
    background-color: #F9F9F9;
    overflow: hidden;
}

.section .container { z-index: 2; }

.section .container + .video-wrap { z-index: 1; }

.revealer-image {
    position: relative;
    bottom: -100px;
    transition: bottom .3s ease-in-out;
    -webkit-transition: bottom .3s ease-in-out;
    -o-transition: bottom .3s ease-in-out;
}

.section:hover .revealer-image { bottom: -50px; }

.swiper-slide .video-wrap,
.section .video-wrap,
.swiper-slide .yt-bg-player,
.section .yt-bg-player {
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: -1;
    top: 0;
    left: 0;
}

.dark .section,
.section.dark {
    background-color: #282828;
    border-color: rgba(255,255,255,0.1);
}