.geburtstag select {
    background-color: white !important;
    height: 40px !important;
    border: #000 1px solid !important;
    padding: 0 8px !important;
    font-weight: normal !important;
    font-size: 1rem !important;
    letter-spacing: 1px !important;
    color: #000000 !important;
    margin-top: 8px !important; /* Abstand nach oben */
    margin-right: 0 !important;
    margin-bottom: 16px !important;
    margin-left: 0 !important;  
}