Long page version names are overlapped by the center arrow when seeing changes

STEPS TO REPRODUCE

1. Open a fresh Jetty/HSQLDB instance
2. Login
3. Go to Home page
4. Click on History tab
5. Click 'Compare selected versions' button

EXPECTED RESULTS

In the changes page, the center arrow (that points "From version" > "To version") does not overlap the name of the revision, even if the name is long (e.g. "xar:org.xwiki.platform:xwiki-platform-distribution-flavor-common/14.1").

ACTUAL RESULTS

The name of the page version is overlapped by the center arrow.

The issue reproduces also on XWiki 14.1, but it also reproduces on older versions (tested on XWiki 10.11.11).