.ndn-form-msg {
    font-family: Roboto, Arial, sans-serif;
    font-size: 14px;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
}

.ndn-form-msg--ok {
    background: #e8f5e9;
    color: #1b5e20;
    border: 1px solid #a5d6a7;
}

.ndn-form-msg--err {
    background: #ffebee;
    color: #b71c1c;
    border: 1px solid #ef9a9a;
}