1. Flexible GridFlexible grid layouts to get you familiar with building within the flexible grid system.(HTML, CSS, SASS, SCSS)
2. FontistoThe iconic font and CSS toolkit. Fontisto gives you scalable vector icons that can instantly be customized: size, color, drop shadow and anything that can be done with the power of CSS.
3. madoselModasel is a family of responsive front-end frameworks that make it easy to design beautiful responsive websites, apps that look amazing on any device. Madosel is semantic, readable, flexible, and completely customizable.