@Prototyperspective I tried to reproduce it but wasn't able to reproduce the bug you showed in the Image, if possible can you specify the browser/device you were using and if found in any article , please specify so it can analysed. Thanks!

Steps to reproduce: Select "large" as a text size in the appearance menu. Make sure your user language is German (e.g. by being logged-out on dewiki) -> Text size in MediaViewer buttons increases as well and leads to the issue reported in this task.

Change #1263897 had a related patch set uploaded (by Praffq; author: Praffq):

[mediawiki/extensions/MultimediaViewer@master] fixed the overflowing issue with the download button

https://gerrit.wikimedia.org/r/1263897

I pushed the fix to gerrit (This is my first time using gerrit , please let me know if I did something wrong).

After fix -

Thanks! Amazing to see such a fast reaction and a new dev getting started on MediaWiki issues (much development needed here). However, I have text size set to Small in the appearance settings so I don't know whether this fixes it nevertheless. The issue exists even if I change font size to standard. Maybe it's some browser font-size thing (Firefox).

@Prototyperspective I'm using Arc browser (chromium extension) and was able to reproduce it with the font set to "large" only, else it ws working alright. I'll try to reproduce the case you mentioned using firefox browser, and will try to fix it for the specific as well

Update:- Checked on firefox for all text sizes, everything works as expected after the fix.

(I think maybe the browser was using cached data to load the css, or maybe checking on wrong deployment)

@SherryYang-WMF Any update on this?

Change #1263897 merged by jenkins-bot:

[mediawiki/extensions/MultimediaViewer@master] fixed the overflowing issue with the download button

https://gerrit.wikimedia.org/r/1263897