Is it possible to limit the editable area on the page, accessible by the "Edit Page" button?

Question

1C-Bitrix

I would like to use a div container with the site-somepage style on the page to set the styles of individual tags specific to this particular page, but it ends up in the editor where the user can rub it.
Is it possible to somehow limit the area that is displayed in the editor by clicking the "Edit page" button? The search engine, except for the included areas, does not give anything.

Answer 1

include these tags in header and footer