Annoying general behavior: the width of the text-input-fields, when editing a node, can be up to 2X your screen's width / decentered I was just wondering whether anyone else is annoyed by the curious &amp; sporadic behavior of Drupal of making the widths of the text-input-fields very large, when starting to edit a node.

The widths of the text-input-fields (by default: "Body" &amp; "Summary") get as much as 2 times the width of my computer screen.

Would anyone know how to get under the hood, to try and come up with a fix?

I am also not sure about the origin of the behavior, which sometimes does show up; and at other times don't.

Thanks.
With the help of the adept question by @J.Reynolds

Might solve this issue: (did so for me)

Just change the administration theme a couple of times

This can be changed at Appearance >> Administration


To which you can navigate manually using the administrative overlay
Or to which you can arrive directly, by default, via www.Your-Website-Domain/#overlay=admin/appearance