Bootstrap from Twitter is an open-source front-end toolkit, created to help designers and developers build the websites faster and more effective. Bootstrap offers HTML, CSS and Java Script base for your designs, including built-in forms, buttons, tables, grids, and navigation elements. The Bootstrap comes in responsive design, too. The 12-column grid system comes with options for both fixed and fluid/floating layouts. All you need for creating a successful web project is provided in our Twitter Bootstrap templates. more info