#qrcode-container {
    font-family: Arial, Helvetica, sans-serif;
    border: 2px solid black;
    border-radius: 25px;
    width: 400px;
    height: 400px;
    text-align: center;
    margin: 0 auto;
}

#qrcode-url {
    font-size: 20px;
}

#qrcode-button {
    font-size: 20px;
}