Every story and comment from the Hacker News API, in a layout borrowed from 2001.
A comment on UBook – Markdown for eBooks.
[1] https://github.com/oreillymedia/HTMLBook
I mean, is
<section data-type="preface"> ... </section>
<preface> ... </preface> ?
[1] https://github.com/oreillymedia/HTMLBook