Ensure admin isn't messed up by customizations

[calmh (Jakob Borg)]

Ah, this is a duplicate.

CSS admin-contents reloaded

Continuing the discussion from CSS Clearfix for admin-contents: I appreciate the idea, but (risking to sound nit-picky) dislike the result for my site: if you have HTML additions which rely on styles which now become automatically disabled, you end up with garbled admin pages - could this become an optional setting (I wouldn’t mind if it defaulted to “off” for the discussed security reasons)? The alternative looks a bit appalling to me, to put all the styles for the HTML customizations as inli…