.cid-api-container {
    max-width: 400px;
    margin: 0 auto;
}

#iid, #cid {
    width: 100%;
    height: 60px; /* Double the normal height */
    font-size: 1.2em;
}

#cid-response {
    margin-top: 20px;
}

#error-message {
    color: red;
    font-size: 0.9em;
    display: none;
}

#copy-cid {
    margin-left: 10px;
}