.video_mask_wrap {
    position: relative;
}

.video_mask_img {
    position: relative;
    width: 100%;
    height: auto;
    z-index: 2;
}

.video_mask_img img {
    width: 100%;
    max-width: 100%;
    height: auto;
}

.video_mask_content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: 2px;
    overflow: hidden;
    z-index: 1;
}

.video_mask_content video {
    width: 100%;
    height: 100%;
    -o-object-fit: cover;
    object-fit: cover;
}

/*no_mask*/
.no_mask .video_mask_content {
    position: relative;
}