You can't choose a font, use bullets, align a paragraph, and not even italicize a word. (resumeprofessionalwriters.com)
3 Francis H. C. Crick, Of Molecules and Men (Seattle: University of Washington Press, 1966), p. 10: note that Crick italicizes the word all. (religion-online.org)
Headings show up as bolded, blockquotes show up as indented, and italicized words show up in italics. (lawyerist.com)