wikimedia/mediawiki-extensions-Wikibase

.wb-db-dialog .oo-ui-dialog-content > .oo-ui-window-body {
    overflow: hidden;
}

.wb-db-dialog .oo-ui-panelLayout {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100%;
    width: 100%;
}