width is where you usually run into problems
https://www.google.com/search?q=3+pixel+font&hl=en&client=firefox-a&hs=015&rls=org.mozilla:en-US:official&tbm=isch&tbo=u&source=univ&sa=X&ei=GzZWUcLKFpL09gSdmYCYAw&ved=0CDcQsAQ&biw=1280&bih=920