marklib
A simple and fast zero-dependencies-library to transform text-selections into serializable markings.
Intro.js - Step-by-step guide and feature introduction for your website
Skeleton: Responsive CSS Boilerplate
highlight.js
GoldenLayout- a multi-window javascript layout manager for webapps
FlowType.JS — Responsive web typography at its finest: font-size and line-height based on element width. | Simple Focus
Dynamics.js
JavaScript library to create physics-based animations
Backstop js
Visual regression testing for web apps.
Typeset.js – an HTML pre-processor for web typography
A typographic pre-processor for your HTML which uses zero client-side JavaScript and gives you: