.modal {
    position: sticky;
}

.flex {
    display: flex;
}

.info-icon {
    width: 20px;
    height: 20px;
}

.caption-target {
    text-decoration-line: none;
}

#caption ul li:hover {
    text-shadow: 2px 2px 2px darkgray;
}

#page-navi {
    margin-top: 40px;
}