Responsive Grid System is a fluid grid CSS framework for developing responsive websites quickly.
Fluid grid CSS framework for fast development of responsive websites. Responsive grid system available in 12 columns grid, 16 columns grid and 24 columns grid with media queries for all standard devices, clearfix, and optional reset.

The styles for the grid, media queries, reset and IE-specific ones are smartly separated into different CSS files so we can use only what is needed.
Compatibility: All Modern Browsers
Website: http://responsive.gs/