.wrap_topic_img.member .col_3 .col_item {
    position: relative;
}
.wrap_topic_img.member .col_3 .col_item:before {
    content: "";
    display: block;
    padding-top: 110%;
}
.wrap_topic_img.member .col_3 .col_item img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.slide.wrap_topic_img .col_item {
    position: relative;
}
.slide.wrap_topic_img .col_item:before {
    content: "";
    display: block;
    padding-top: 80%;
}
.slide.wrap_topic_img .col_item img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}