These code snippets enable you to remove body & post classes in WordPress.
You can use the code directly in a template file which uses the WordPress Template hierarchy or via your functions file if you add a conditional tag after the function.
This code comes in handy when you want to use a front-page.php template on archives or elsewhere in the same theme as you don’t need to remove or modify existing CSS for classes generated by the template file you want to re-use.
Here’s the code snippets for logged in members: