.list-cont .item, .article__gridlist .article__item {
    position: relative;
}

.video__img_l::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 43%;
    background-image: url(../image/play_gray.png);
    background-repeat: no-repeat;
    background-size: 100%;
    width: 45px;
    opacity: 0.7;
    z-index: 1;
    -webkit-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    height: 45px;
}
.video__img::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 53%;
    background-image: url(../image/play_gray.png);
    background-repeat: no-repeat;
    background-size: 100%;
    width: 30px;
    opacity: 0.7;
    z-index: 1;
    -webkit-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    height: 30px;
}

.video__img_s::before {
    content: "";
    position: absolute;
    left: 24%;
    top: 50%;
    background-image: url(../image/play_gray.png);
    background-repeat: no-repeat;
    background-size: 100%;
    width: 20px;
    opacity: 0.7;
    z-index: 1;
    -webkit-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    height: 20px;
}