HTML5 Boilerplate is a professional front-end template for building fast, robust, and adaptable web apps or sites.
Sass is the most mature, stable, and powerful professional grade CSS extension language in the world.
Sleek, intuitive, and powerful mobile first front-end framework for faster and easier web development.
Modernizr is an open-source JavaScript library that helps you build the next generation of HTML5 and CSS3-powered websites.