qwc2/components/style/OverviewMapButton.css

QGIS Web Client

div.overview-map {
    position: absolute;
    bottom: 0;
    right: 0;
    z-index: 101;
}

div.overview-map > button {
    font-size: initial!important;
    right: 0.25em;
    bottom: 0.25em;
    width: 1.375em;
    height: 1.375em;
    position: absolute;
    color: var(--map-button-text-color)!important;
    background-color: var(--map-button-bg-color)!important;
    border: 0!important;
    outline: 0;
    z-index: 101;
    border-radius: 2px;
    font-weight: bold;
}

div.overview-map > div.ol-overviewmap-map {
    position: absolute;
    right: 1px;
    bottom: 1px;
    width: 200px;
    height: 200px;
    background-color: white;
    box-shadow: 0px 0px 8px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-color);
}

div.overview-map.ol-collapsed > div.ol-overviewmap-map {
    display: none;
}