title_body: Moon+ Reader -- what kind of CSS support? formatting tips?
upvoted_answer: There is now a setting in MoonReader to disable publisher's CSS. But even when it's not checked, not all CSS is supported.
  I've tested multiple Android Epub readers with a bilingual epub I made, where the two languages are distinguished by the background colour and the font style (the second language is in italics). Only the Gitgen Epub reader displays the background color and the font style properly.
  According to my tests, these Android epub readers support font styles (bold and italics) but not background color:
  
  Prestigio
  Moon Reader
  Pocketbook
  Mantano
  UB Reader
  
  FB Reader did not even show italics.
  I applied the CSS by selecting the class, using !important.