Re:
  http://debbugs.gnu.org/cgi/bugreport.cgi?bug=21846

See attachments.

font: Droid Sans Mono, Size: 10
screen shot:
  ytest-emacs-Screenshot_2015-11-06_14.10.12.png
file opened:
  ytest-emacs.txt
file showing how example problem should look rendered in browser (firefox/linux):
  ytest-how-should-look-rendered-ok_Screenshot_2015-11-06_16.03.29.png
URL for above:
  http://uyip.org/ytest/mashinke-linux.html