Bootstrap is an HTML, CSS & JS Library that focuses on simplifying the development of informative web pages (as opposed to web apps). The primary purpose of adding it to a web project is to apply Bootstrap's choices of color, size, font and layout to that project.Bootstrap is a front-end framework that contains a collection of tools designed to allow developers to quickly create web applications.Bootstrap is easy to understand and it has much pre-design class. In CSS, we have to write code from scratch. In Bootstrap, we can add pre-defined class into the code without writing code.Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS and JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.
