.maps-acceptance {
    position: relative;
}

.maps-acceptance * {
    display: block;
    font-size: 18px;
}

.maps-acceptance::before {
    background-image: url('https://bbc-bayreuth.ddev.site/fileadmin/user_upload/News/Allgemein/HALLE_GESELLSCHAFTER.jpg');
    background-size: contain;
    filter: grayscale(100%);
    height: 100%;
    width: 100%;
    content: '';
    position:absolute;
    top:0;
    left: 0;
    opacity: 0.4;
}

.maps-acceptance span {
    position: relative;
    z-index: 2;
    color: white;
    width: 100%;
    text-align: center;
    top: 25%;
}

.maps-acceptance > span:nth-child(1) {
    font-weight: 700;
}

.maps-acceptance button {
    position: relative;
    z-index: 2;
    margin: auto;
    top: 35%;
}