Ribs is a small collection of well-organized SASS files that can help you rapidly develop sites that look beautiful at any size, be it a 17" laptop screen or an iPhone. It's based on a responsive grid, but also provides very basic CSS for typography, buttons, forms and media queries. Go ahead, resize this super basic page to see the grid in action.
Ribs is the evolution of the original Skeleton Project.
Skeleton is built on three core principles: