How can one troubleshoot issues with background color when including content with PHP?

To troubleshoot issues with background color when including content with PHP, ensure that the CSS styles for the background color are correctly applied to the included content. Check for any conflicting styles that may be overriding the background color. Additionally, make sure that the included content is properly structured within the HTML markup to ensure the background color is displayed correctly.

// Example PHP code snippet to include content with background color
<div style="background-color: #f0f0f0;">
    <?php include 'content.php'; ?>
</div>