.fullsize-rows-container div.fullsize-row[class*="bg-bild-ueberuns"] {
    background: #eeeeee  url(https://www.ukv.de/export/sites/ukv/_resources/bilder/ueber-uns/karriere-hintergrund.png) bottom center no-repeat;
    background-size:cover;
    background-attachment:fixed;
}