In PHP, what are some strategies for troubleshooting menu display issues caused by custom CSS?

When troubleshooting menu display issues caused by custom CSS in PHP, one strategy is to inspect the CSS styles applied to the menu elements using browser developer tools. Look for conflicting styles or missing properties that may be affecting the display. Another strategy is to simplify the CSS styles applied to the menu and gradually add custom styles back in to identify the specific issue. Additionally, ensuring that the menu HTML structure is correctly implemented can also help resolve display problems.

<?php
// Example PHP code snippet to troubleshoot menu display issues caused by custom CSS

// Check the CSS styles applied to the menu elements
// Inspect the styles using browser developer tools
// Look for conflicting styles or missing properties

// Simplify the CSS styles applied to the menu
// Gradually add custom styles back in to identify the specific issue

// Ensure that the menu HTML structure is correctly implemented
// Make sure the menu items are nested properly and have the correct classes

// Implement necessary changes to fix the menu display issue
// Test the menu display in different browsers to ensure compatibility
?>