Frontend Framework for Building Responsive Sites and Apps: Skel.js
Skel JS is a sophisticated 12 column CSS grid system with tons of cool features and a concise, uncluttered syntax for building responsive sites and apps.
It offers a streamlined replacement for CSS media queries that’s intelligent and extremely easy to work with. It comes with handy shortcuts to deal with common CSS tasks, like browser resets and global box model changes.
Skel JS also has no dependencies and will play nice with (most) other libraries and frameworks.