.rend_list {display: flex;flex-wrap: wrap;}
    .rend_list .rend_item {width: auto;height: 50px;margin-right: 10px;margin-bottom: 15px;}
    .rend_list .rend_item .rend_img {width: auto;height: 100%;}
    .rend_list .rend_item .rend_img img {width: 100%;height: 100%;margin: auto;}
    @media screen and (max-width: 1000px) {
        .rend_list .rend_item {height: 40px;}
    }