.spu_card {
    border-color: white;
}
.spu_card:focus, .spu_card:hover {
    /*color: black;*/
    /*font-weight: bolder;*/
    border-style: solid;
    border-color: #00bb31;
    /*padding: 2px;*/
}

div.square .exhibition_sub_img {
    width: 100%;
    height: 100%;
    position: absolute;
}

.card_title {
    color: black;
    text-decoration: none;
}

.card_title.active, .card_title:focus, .card_title:hover {
    color: #00bb31;
}