.Lernen {
    background-color: rgb(90, 10, 10);
    -webkit-box-shadow: -3px 4px 13px 1px rgba(0, 0, 0, 0.68);
    box-shadow: -3px 4px 13px 1px rgba(185, 114, 114, 0.68);
    margin-left: 20px;
    margin-right: 20px;
    border-radius: 32px;
    padding: 15px;

}