body {
    font-family: Arial, sans-serif;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background-color: #f5f5f5;
}

.container {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.code-section {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 4px;
    margin-bottom: 20px;
}

pre {
    background-color: #f4f4f4;
    padding: 15px;
    border-radius: 4px;
    overflow-x: auto;
}

code {
    font-family: 'Courier New', Courier, monospace;
}

.output-section {
    background-color: #e9ecef;
    padding: 20px;
    border-radius: 4px;
    margin-top: 20px;
}

h2 {
    color: #333;
    border-bottom: 2px solid #ddd;
    padding-bottom: 10px;
}