Yamb responsive Boilerplate
YAMB – Yet Another Mobile Boilerplate is a tool for responsive web design. This framework boasts an impressive set of built in tools and features, a great starting point for prototyping new projects and stepping into responsive design.
YAMB is a small set of tools and best practices that allow web designers to build responsive websites faster. Websites built with YAMB will be optimized for screen widths between 320px and anything. Resize your browser to check it out.