(Logged-in, HTTPS, Mac, Latest Chrome)
- Visit https://en.wikipedia.org/wiki/CrossRef
- Click Edit
Observe how the article name atop the page becomes smaller. Switch back and forth to see it.
This is caused by the font-size: 1em reset on the ve-init-target container. ve-mw tries to restore some of the font-sizes, but doesn't catch them all. firstHeading is among the elements most visible that is doesn't restore the size of.