Bootstrap is a popular framework designed for building responsive, accessible, and mobile-ready websites. An open-source platform using HTML5, CSS3, and jQuery, it features a 12-column grid, icons you can incorporate into your designs, and fully functional javascript components that are ready to use. This course provides everything you need to know to get started building websites with Bootstrap, and is built with our new practice environments in mind, which let you develop your code along with author Ray Villalobos. Ray will review Bootstrap's grid, CSS classes, and javascript components (dropdowns, modals, carousels, and more), and help you integrate them into your own sophisticated websites.