Problem: browsers implicitly and unexpectedly set the font-size to something around 13px with `font-family: monospace;`, but not with `font-family: monospace,monospace;`.
See: http://code.iamkate.com/html-and-css/fixing-browsers-broken-monospace-font-handling/
Bug: T176636
Change-Id: Ied24a0cde7db4a6092d2cd7a6207d0a361424c3f
Related: T245568
Related: T245476