Enhanced eBooks in the browser.
Alongslide is a responsive, horizontal presentation framework for long-form reading on the web, employing a lightweight templating syntax for Markdown.
Alongslide for Middleman
Alongslide demo Rails project
RegionFlow is a polyfill++ for CSS Regions.
The safe Markdown parser, reloaded, with footnotes.
Horizonize is a jQuery plugin to lay out any HTML content in horizontally-scrolling columns.