Kindle Previewer. And sure, here are screenshots:
Word:
http://gyazo.com/01d61646d299764cabb9602b7e088aaf
Epub:
http://gyazo.com/60324ab5c58ae298284678e402e80052
(ignore that it's off centre, that's just me being lazy LOL)
Mobi (Normal View):
http://gyazo.com/440bea5baabd6e426257d235426100b0
Mobi (Zoomed in on the image):
http://gyazo.com/ecb012427c710e182dc0916b41818b72
I'm using the latest versions of both Kindle Previewer and Calibre.
