The rhyme scheme box in Firefox:
The rhyme scheme box in Google Chrome:
My computer’s OS is Mac OS X 10.6. Firefox is version 16.0.2 with User Agent string Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:16.0) Gecko/20100101 Firefox/16.0
. Google Chrome is Version 23.0.1271.64.