.karte_content {
    text-align: center;
    margin-bottom: 30px;
    position: relative;
}
.karte_kv {
    background-image:url("/pc/images/piano_summary/karte_kvbg.jpg");
    background-size: cover;
    background-repeat: no-repeat;
    height: 320px;
}
.karte_kv img {
    margin-top: -10px;
}
.karte_open_btn {
    position: absolute;
    bottom: 20px;
    left: calc(50% - 117px);
}

.karte_modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    background-color: rgba(51, 51, 51, 0.75);
    text-align: center;
    overflow: scroll;
}
.karte_guide_img {
    display: inline-block;
    margin-top: -330px;
}
.karte_modal .karte_close_btn {
    position: fixed;
    top: 20px;
    right: 20px;
}