Module:LayeredImage/styles.css

.layered-image {
    display: inline-block;
    max-width: 100%;
    line-height: 0;
    vertical-align: top;
}

.layered-image__layer {
    display: block;
}

.layered-image__layer > a,
.layered-image__layer .mw-file-element {
    display: block;
}

.layered-image__layer .mw-file-element {
    width: 100%;
    height: auto;
}