Pure is a newest framework that is created by Yahoo!. It uses Normalize.CSS and doesn’t use any JavaScript but only HTML-CSS.

The framework is built with responsive layouts in mind and has styles for typography, grids, forms, buttons, tables and navigation.
Markup used is very simple and the whole framework is pretty lightweight (5.7KB minified and gzipped).
Also, it is modular and styles for each module can be used separately.