#mainNav  li.traeger {
    background-image:url("/files/user_upload/navigation-background/tge/TGE_ueber-uns.jpg");
}
#mainNav  li.gesundheit {
    background-image:url("/files/user_upload/navigation-background/tge/tge_gesundheit.jpg");
}
#mainNav  li.pflege {
    background-image:url("/files/user_upload/navigation-background/tge/tge_pflege.jpg");
}
#mainNav  li.bildung {
    background-image:url("/files/user_upload/navigation-background/tge/tge_bildung.jpg");
}