Is bootstrap a framework?

#Bootstrap is a framework

Bootstrap is a collaboration between Mark Otto and Jacob Thornton, designers of the American Twitter company, based on HTML , CSS, and JavaScript development, a simple, intuitive, and powerful front-end development framework, making Web development faster.

Bootstrap provides elegant HTML and CSS specifications, which are written in the dynamic CSS language Less. Bootstrap has been very popular since its launch and has been a popular open source project on GitHub, including NASA's MSNBC (Microsoft National Broadcasting Company) Breaking News. [1] Some frameworks that are familiar to domestic mobile developers, such as the WeX5 front-end open source framework, are also performance optimized based on the Bootstrap source code.

Currently the most widely used versions are 2, 3 and 4. The latest version of 2 is 2.3.2, the latest version of 3 is 3.3.7, and the latest version of 4 is 4.3.0

In late January 2018, the Bootstrap team released the official version of Bootstrap 4. The main changes in 4 include the following aspects:

● Migrated from Less to Sass

● Improved grid System

●Default flexbox support

●Dropped wells, thumbnails, and panels for cards

●Merge all HTML resets into a new module: Reboot

●New customization options

●No longer supports IE8

●Rewrite all JavaScript plugins

●Improve automatic positioning of tooltips and popovers

●Improved documentation

●Many other improvements

Related recommendations: "bootstrap tutorial"

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