/* Keep the entire figure on the theme's text column, on desktop and mobile. */
.wp-block-post-content > figure.citynavi-body-image {
    width:100% !important;
    max-width:var(--wp--style--global--content-size, 100%) !important;
    margin-inline:auto !important;
    box-sizing:border-box;
}
figure.citynavi-body-image img {
    display:block;
    width:100% !important;
    max-width:100% !important;
    height:auto !important;
    box-sizing:border-box;
}
figure.citynavi-body-image figcaption { overflow-wrap:anywhere; }