#qr-form {
    display: flex;
    flex-direction: column;
    width: 300px;
    margin: auto;
}

#qr-form label,
#qr-form input,
#qr-form button {
    margin-bottom: 10px;
}

#qr-code-result {
    margin-top: 20px;
    text-align: center;
}