According to their official website,
Twitter bootstrap is sleek, intuitive, and powerful front-end framework for faster and easier web development.
Bootstrap was developed by Mark Otto and Jacob Thornton. In August, 2011 Twitter released Bootstrap as open-source. In February 2012, it was the most popular GitHub development project.
Now take a look on the projects feature:
Bootstrap is built on responsive 12-column grids, layouts, and components.
- Global styles
- Grid system
- Fluid grid system
- Responsive design
Fundamental HTML elements styled and enhanced with extensible classes.
- Icons by Glyphicons
Dozens of reusable components built to provide navigation, alerts, popovers, and more.
- Button groups
- Button dropdowns
- Labels and badges
- Progress bars
- Media object
Bring Bootstrap’s components to life—now with 13 custom jQuery plugins.