Font and button size unusually large/small in Dashboard

This is a Dashboard question, not a site question. I have 4 sites and for 3 of them the Dashboard looks the same. However, for one site, I see the following:

– The text in the left sidebar is very small and the items are vertically spaced too far apart
– All the buttons in the UI are large and the text is not vertically centered
– In the page editing area, the space between paragraphs is unusually large.

It’s not a browser text size issue as I’ve tried that and as I noted, the other three sites are fine. I couldn’t find anything in settings. Changing the browser window size doesn’t do anything. Same in Chrome in Safari. Same after clearing caches or rebooting. It does not affect the published pages.

It’s baffling and extremely irritating. ??

Thanks. ??

• This topic was modified 4 years, 11 months ago by Jan Dembowski. Reason: Moved to Fixing WordPress, this is not an Everything else WordPress topic

The page I need help with: [log in to see the link]