How can modern CSS techniques like Flexbox improve the styling and layout of PHP-generated content on web pages?

Modern CSS techniques like Flexbox can improve the styling and layout of PHP-generated content by providing more control over the positioning and alignment of elements on the page. Flexbox allows for easy creation of responsive layouts that adapt to different screen sizes, making the content more visually appealing and user-friendly.

<!DOCTYPE html>
<html>
<head>
    <style>
        .container {
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
        }
        .content {
            background-color: lightblue;
            padding: 20px;
            border-radius: 5px;
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="content">
            <?php
                // PHP-generated content goes here
                echo "<h1>Welcome to our website!</h1>";
                echo "<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>";
            ?>
        </div>
    </div>
</body>
</html>