Steps to replicate the issue:
- Edit a template page on Wikipedia, using the 2017-wikitext-editor (NWE) and Vector 2022.
- Preview the template on any page using Preview page with this template.
- Example: preview de:Template:Fichier Décès on page Gérard Calvi.
What happens?:
The resulting page is misaligned on screens wider than 1000px: the title (h1) and the catlinks are outside of mw-body-content, so the main content will get squeezed into a small column on the right of the screen.
What should have happened instead?:
The preview should show a realistic example of the resulting page, like in other skins.
Other information:
Maybe related to T328783. First reported here on dewiki.
