Bootstrap is a front-end development framework that enables developers & designers to quickly build fully responsive websites. The framework contains global CSS settings with built-in components and extensible classes in the form of typography, navigation, buttons and much more.Bootstrap was created at Twitter in mid-2010 by Twitter.
Bootstrap version 4
On October 29, 2014, Mark Otto announced Bootstrap 4 was in development. The first alpha version of Bootstrap 4 was deployed on August 19, 2015.
Bootstrap Version 3.3.6
The Bootstrap 3.3.6 release was announced on 2 December 2015.It’s a long overdue release that addresses dozens of CSS bug fixes and documentation updates. Woohoo!.
Bootstrap Version 3.3.0
The Bootstrap 3.3.0 release was announced on 21 August 2015.This release has been all about bug fixes, accessibility improvements, and documentation updates.
Bootstrap Version 3.0.0
The Bootstrap 3 release was announced on 19 August, 2013, moving to a mobile first approach and using a flat design.It’s been a crazy long ride to say the least and we’re stoked to finally have this out in the wild.
Bootstrap Version 2.3.2
The Bootstrap 2 release was announced on January 31, 2012,, moving to a mobile first approach and using a flat designWhile we’re not actively maintaining or supporting 2.3.2, you can still get to the old documentation.
Bootstrap Version 2.0
The Bootstrap 2.0 release was announced on 31 january 2012.Since version 2.0, the configuration of Bootstrap also has a special "Customize" option in the documentation.
”Bootstrap is maintained by the founding team and a small group of invaluable core contributors, with the massive support and involvement of our community.”
”Bootstrap easily and efficiently scales your websites and applications with a single code base, from phones to tablets to desktops with CSS media queries. ”
”With Bootstrap, you get extensive and beautiful documentation for common HTML elements, dozens of custom HTML and CSS components, and awesome jQuery plugins. ”
”Bootstrap ships with vanilla CSS, but its source code utilizes the two most popular CSS preprocessors, Less and Sass. Quickly get started with precompiled CSS or build on the source.”