WARNING:You can break your site!Create a test site for putting this code in!

Thanks to Loes suggestion I created a test site!

https://my.wealthyaffiliate.com/training/using-mal...

I exercised for the theme Twenty Sixteen and for the theme I use :WP Fan Zone

You must put a code in the function.php, Go to Dashboard, Appearance, Editor, in the right site choose function.php

For the Twenty Sixteen Theme details in the blog:

https://my.wealthyaffiliate.com/dorina62/blog/i-di...