.qr-preview {
    margin-top: 10px;
    min-height: 150px;
    background: #f9f9f9;
    padding: 10px;
    display: inline-block;
    border: 1px solid #eee;
}

.qr-image {
    display: block;
    max-width: 150px;
}

.qr-text-value {
    margin-top: 5px;
    font-size: 0.9em;
    color: #666;
}