.topic {
    background-color: white;
    border:3px solid #f3f3f3;
    margin: 15px;
    text-align: center;
}

.fachgebiete {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
    background-color: white;
    border:3px solid #f3f3f3;
    padding: 20px;
    margin: 15px;
}

.page {
    flex: 1;
    min-width: 300px;
    text-align: left;
    border:3px solid #ffffff;
    margin-left: 50px;
    margin-right: 50px;
    padding: 10px;
}

.area {
    margin-bottom: 10px;
}

.area img {
    margin-right: 5px;
}