What are best practices for ensuring consistent styling across browsers when using PHP to generate templates?

When using PHP to generate templates, it is important to ensure consistent styling across browsers by using CSS resets or normalizations. This helps to eliminate default browser styles that can cause inconsistencies in how elements are displayed. Additionally, using a CSS preprocessor like Sass or Less can help streamline styling and ensure a more consistent look across browsers.

<!DOCTYPE html>
<html>
<head>
    <style>
        /* Reset CSS */
        body, h1, p {
            margin: 0;
            padding: 0;
        }
        /* Your custom styles here */
    </style>
</head>
<body>
    <?php
    // PHP code to generate template content
    ?>
</body>
</html>