How to change style attribute of an element dynamically
How can I change a style in the content (without having to change the content in all my pages)?
To change all the <h3> tags to <h2>, add this code to your functions file or plugin:
<?php function wpster_change_h3_to_h2($content) { $content = preg_replace('/<h3(.*)>(.*)<\/h3>/', '<h2$1>$2</h2>', $content); return $content; } add_filter('the_content', 'wpster_change_h3_to_h2', 9999); ?>