Tufte Markdown providers tools to style web articles or paper handouts using the ideas demonstrated by Edward Tufte's books and handouts. Tufte's style is known for its simplicity, extensive use of sidenotes, tight integration of graphics with text, and carefully chosen typography.
Write a markdown article including pp macros, then use pp to preprocess the markdown and pipe it to Pandoc, Pandoc convert Markdown to HTML or LaTeX document.
See example build.sh.
You can see a full list of macros in tufte-markdown.pp