How can the use of CSS for styling elements in PHP scripts improve code readability and maintainability?

Using CSS for styling elements in PHP scripts can improve code readability and maintainability by separating the presentation layer from the logic layer. This allows for easier maintenance and updates to the styling without having to modify the PHP code. It also makes the code more organized and easier to understand for developers working on the project.

<!DOCTYPE html>
<html>
<head>
    <style>
        .header {
            background-color: #333;
            color: white;
            padding: 10px;
        }
        .content {
            padding: 20px;
        }
    </style>
</head>
<body>
    <div class="header">Welcome to our website!</div>
    <div class="content">
        <?php
            // PHP logic here
            echo "Hello, world!";
        ?>
    </div>
</body>
</html>