.menu-group-header:nth-of-type(1):before {
    background-image: url(https://www.heuriger-dreimaederlhaus.com/wp-content/uploads/2019/12/soup_gruen.png);
}
.menu-group-header:nth-of-type(2):before {
    background-image: url(https://www.heuriger-dreimaederlhaus.com/wp-content/uploads/2019/12/soup_gruen.png);
}
.menu-group-header:nth-of-type(3):before {
    background-image: url(https://www.heuriger-dreimaederlhaus.com/wp-content/uploads/2019/12/soup_gruen.png);
}
.menu-group-header:nth-of-type(4):before {
    background-image: url(https://www.heuriger-dreimaederlhaus.com/wp-content/uploads/2019/12/soup_gruen.png);
}
.menu-group-header:nth-of-type(5):before {
    background-image: url(https://www.heuriger-dreimaederlhaus.com/wp-content/uploads/2019/12/soup_gruen.png);
}
.menu-group-header:nth-of-type(6):before {
    background-image: url(https://www.heuriger-dreimaederlhaus.com/wp-content/uploads/2019/12/soup_gruen.png);
}
.menu-group-header:before {
    display: block;
    background-size: contain;
    background-repeat: no-repeat;
    margin: 0 auto;
    width: 50px;
    height: 50px;
    content: '';
}