body {
    font-family: Arial, sans-serif;
    margin: 20px;
    background-color: #f0f2f5;
    color: #333;
}

.container {
    max-width: 800px;
    margin: auto;
    background: white;
    padding: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
}
