When it comes to develop an elegant and
responsive website or application rapidly, Bootstrap acts as a boon for front-end developers. Bootstrap is one of the most popular HTML, CSS, and JavaScript frameworks developed by two Twitter employees Mark Otto and Jacob Thornton.
Bootstrap or Twitter Bootstrap is basically an open-source framework or toolkit that comes along with pre-built, customizable
HTML5, Java, and CSS3 components such as forms, buttons, typography, navigation, etc. -to enable the process of user interface development faster and smoother for front-end developers.