How can CSS be utilized to improve the performance and user experience of a PHP-driven website?

To improve the performance and user experience of a PHP-driven website, CSS can be utilized to optimize the styling and layout of the website. By properly structuring and organizing the CSS code, the website can load faster and provide a more visually appealing experience for users.

<!DOCTYPE html>
<html>
<head>
    <title>PHP CSS Performance</title>
    <style>
        /* CSS code for styling and layout optimization */
        body {
            font-family: Arial, sans-serif;
            background-color: #f0f0f0;
            margin: 0;
            padding: 0;
        }
        .container {
            width: 80%;
            margin: 0 auto;
            padding: 20px;
            background-color: #fff;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        }
    </style>
</head>
<body>
    <div class="container">
        <h1>Welcome to PHP CSS Performance</h1>
        <p>This is a sample PHP-driven website with optimized CSS styling.</p>
    </div>
</body>
</html>