[rt-users] web UI shifted to the right?

[Jeff Blaine]

RT 3.8.7

Has anyone noticed a strange shift to the right of
the web UI at any point in time?

We noticed this last week for the first time after
using that instance for months.  All of a sudden
even the front-page login box is off-centered.
Searching the filesystem for modified files shows
nothing other than the database and Mason cache.

Clearing the Mason cache + restarting does not
address the issue.