How can the placement of the CSS link tag impact the styling of included PHP files in relation to the main index.php file?

The placement of the CSS link tag in the main index.php file can impact the styling of included PHP files because CSS rules cascade down the document tree. To ensure consistent styling across all included PHP files, the CSS link tag should be placed in the head section of the main index.php file. 

<!DOCTYPE html>
<html>
<head>
    <title>My Website</title>
    <link rel="stylesheet" type="text/css" href="styles.css">
</head>
<body>
    <?php include 'header.php'; ?>
    <?php include 'content.php'; ?>
    <?php include 'footer.php'; ?>
</body>
</html>

Keywords

CSS link tag styling included PHP files index.php file placement

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