Baiju M left a comment pointing us towards a style Fred L. Drake, Jr made for the Zope project's documentation, back in 2004.

We've added the style to the gallery:

• http://rst2a.com/gallery/html/

And you can see it in action here:

• http://api.rst2a.com/1.0/rst2/html?uri=http://tinyurl.com/2fvqwk&style=zope