.DescartesMiniMap {
    border: none;
}

.DescartesMiniMap .ol-overviewmap-box {
    border: 2px dotted red;
}

.DescartesMiniMap.ol-overviewmap {
    bottom: auto;
    left: auto;
    right: 1px;
    top: 1px;
}

.DescartesMiniMap.ol-overviewmap:not(.ol-collapsed) button {
    top: 1px;
    right: 1px;
    position: absolute;
    left:auto;
}