@charset "utf-8";

.video_box.pr_video {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%;
}
.video_box.pr_video iframe {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
}
.video_box:before{display: none;}