Bootstrap 5 Tutorial

After several months of internal development by a small team, many developers at Twitter began contributing to the project. The toolkit initially known as Twitter Blueprint, was renamed to Bootstrap and publicly released as an open-source project on 19 August 2011. Since that release, Bootstrap has been actively maintained by its original authors, Mark Otto and Jacob Thornton, together with a core development team and a broad community of external contributors.

On 31 January 2012, Bootstrap 2 was released, introducing a new 12-column responsive grid system, native support for Glyphicons icon fonts, and significant enhancements to numerous existing components.

On 19 August 2013, Bootstrap 3 was released. It introduced a flat design which contained a mobile-first development paradigm.

On 19 August 2015, the first alpha version of Bootstrap 4 was released. Later, on 10 August 2017, the first beta version became available. This release introduced several key improvements, including: Enhanced print styles and border utilities, Greater control over the flexbox system and dropping the Glyphicons icon font.

On 5 May 2021, Bootstrap 5 was officially released. This version focused on improving Bootstrap 4 while introducing as few major breaking changes as possible. They improved existing features and components, removed support for older browsers, dropped jQuery in favor of vanilla JavaScript, and embraced more future-friendly technologies such as CSS custom properties.

Prerequisite for Bootstrap is fundamentals of HTML, CSS, JavaScript, Responsive design concepts and jQuery is optional.