Bootstrap 5 is a front-end framework for developing responsive, mobile-first websites and applications. It was created by Twitter and is now maintained by a group of developers as an open-source project. Bootstrap 5 provides a set of CSS and JavaScript components, such as buttons, forms, navigation menus, modals, and more, that make it easy to quickly build and style web pages making the same bootstrap classes, bootstrap dist css bootstrap.min.css and hell lot of other things easy like a Sunday morning.