Bootstrap (formerly Twitter Bootstrap) is a frontend framework designed to kick-start development of Web apps and sites. For questions related to a version of Bootstrap also use the specific version's tag from "twitter-bootstrap-2", "twitter-bootstrap-3", "bootstrap-4" and "bootstrap-5" tags.
Bootstrap (formerly Twitter Bootstrap) is a frontend framework designed to kick start the frontend development of web apps and sites. Among other things, it includes base CSS and HTML for typography, icons, forms, buttons, tables, layout grids, and navigation, along with support for responsive layouts.
There are four major versions of the framework:
- Bootstrap 2.3.2 - twitter-bootstrap-2
- Bootstrap 3 - twitter-bootstrap-3
- Bootstrap 4 - bootstrap-4
- Bootstrap 5 - bootstrap-5
Current version: Bootstrap v5.3.3
It is tested and supported in the major modern browsers, such as the latest versions of Safari, Google Chrome, Firefox, Microsoft Edge.
Starting with version 2.0, the default download package contains cumulative JavaScript and CSS files. If you're looking for the uncompiled LESS source files, documentation and example templates, you can download them from the project's GitHub page. Less was replaced with Sass beginning from version 4.0.
Prior to v3.1.0, it was licensed under the Apache 2 License, but is now under the MIT License due to this issue.
See also css-frameworks
Links
- Website and style guide
- The Official Bootstrap Blog
- Bootstrap Docs (documentation from v1.0.0 to v3.3.7)
- Bootstrap Icons
- About Bootstrap (Wikipedia)
- Bootstrap on GitHub
Bootstrap Migration Resources and Tools
NPM package
npm i bootstrap
v5.3.3 Stack Snippet Starter Pack
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-QWTKZyjpPEjISv5WaRU9OFeRpok6YctnYmDr5pNlyT2bRjXh0JMhjY6hW+ALEwIH" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js" integrity="sha384-YvpcrYf0tY3lHB60NNkmXc5s9fDVZLESaAA55NDzOxhy9GkcIdslK1eN7N6jIeHz" crossorigin="anonymous"></script>
v4.2.1 Stack Snippet Starter Pack
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/css/bootstrap.min.css" integrity="sha384-GJzZqFGwb1QTTN6wy59ffF1BuGJpLSa9DkKMp0DgiMDm4iYMj70gZWKYbI706tWS" crossorigin="anonymous">
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.6/umd/popper.min.js" integrity="sha384-wHAiFfRlMFy6i5SRaxvfOCifBUQy1xHdJ/yoi7FRNXMRBu5WHdZYu1hA6ZOblgut" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/js/bootstrap.min.js" integrity="sha384-B0UglyR+jN6CkvvICOB2joaf5I4l3gm9GU6Hc1og6Ls7i6U/mkkaduKaBhlAXv9k" crossorigin="anonymous"></script>
