body { font-family: Arial, sans-serif; background-color: #f4f7fa; margin: 0; padding: 0; display: flex; justify-content: center; align-items: center; height: 100vh; } .container { background-color: white; border-radius: 10px; box-shadow: 0px 10px 20px rgba(0, 0, 0, 0.1); padding: 30px; width: 300px; } h1 { text-align: center; font-size: 24px; margin-bottom: 20px; } .form-container { display: flex; flex-direction: column; gap: 10px; } input { padding: 10px; font-size: 14px; border: 1px solid #ccc; border-radius: 5px; } button { padding: 10px; background-color: #4CAF50; color: white; font-size: 16px; border: none; border-radius: 5px; cursor: pointer; margin-top: 10px; } button:hover { background-color: #45a049; } .qr-code-container { margin-top: 20px; text-align: center; } .qr-code-container img { max-width: 100%; height: auto; }