body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    color: #333;
}

.gr-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
    background: #ffffff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
}

.gr-button {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 10px 20px;
    margin-top: 10px;
    border-radius: 4px;
    cursor: pointer;
}

.gr-button:hover {
    background-color: #0056b3;
}