Forked from Bootstrap, built by todc, TODC Bootstrap utilizes LESS CSS, is compiled via Node, and is managed through GitHub to help nerds do awesome stuff on the web.
Bootstrap was made to not only look and behave great in the latest desktop browsers (as well as IE7!), but in tablet and smartphone browsers via responsive CSS as well.
A 12-column responsive grid, dozens of components, JavaScript plugins, typography, and form controls.