body, html {
    height: 100%;
    margin: 0;
}

.zentriertes-bild {
    background-image: url('background.jpg'); /* Pfad zu Ihrem Bild */
    height: 100%;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

.c-fikloo {
	min-width: 500px!important;
}