Board Thread:Support Requests - Designing Your Wiki/@comment-32298433-20170616150527/@comment-26402117-20170616161046

This is a very common bug with Wikipedia infoboxes, because they use HTMLTidy to clean up broken output. I would advise using a Portable Infobox so that you can update it and have elements render better on mobile.

If you want yours to look like Wikipedia ones, I can offer some styling for that, which should go in:
 * MediaWiki:Common.css (for Oasis and Monobook)
 * or MediaWiki:Wikia.css (Oasis only).

You should be able to manually copy over all the fields using the Infobox Builder.

If you need any help at all, just reply. :)