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https://github.com/twbs/bootstrap

The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.
https://github.com/twbs/bootstrap

bootstrap css css-framework html javascript sass scss

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The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.

Lists

README 

        


  

    Bootstrap logo

  




Bootstrap





  Sleek, intuitive, and powerful front-end framework for faster and easier web development.

  


  Explore Bootstrap docs »

  


  


  Report bug

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  Request feature

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  Themes

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  Blog




## Bootstrap 5



Our default branch is for development of our Bootstrap 5 release. Head to the [`v4-dev` branch](https://github.com/twbs/bootstrap/tree/v4-dev) to view the readme, documentation, and source code for Bootstrap 4.



## Table of contents



- [Quick start](#quick-start)

- [Status](#status)

- [What's included](#whats-included)

- [Bugs and feature requests](#bugs-and-feature-requests)

- [Documentation](#documentation)

- [Contributing](#contributing)

- [Community](#community)

- [Versioning](#versioning)

- [Creators](#creators)

- [Thanks](#thanks)

- [Copyright and license](#copyright-and-license)



## Quick start



Several quick start options are available:



- [Download the latest release](https://github.com/twbs/bootstrap/archive/v5.3.2.zip)

- Clone the repo: `git clone https://github.com/twbs/bootstrap.git`

- Install with [npm](https://www.npmjs.com/): `npm install [email protected]`

- Install with [yarn](https://yarnpkg.com/): `yarn add [email protected]`

- Install with [Composer](https://getcomposer.org/): `composer require twbs/bootstrap:5.3.2`

- Install with [NuGet](https://www.nuget.org/): CSS: `Install-Package bootstrap` Sass: `Install-Package bootstrap.sass`



Read the [Getting started page](https://getbootstrap.com/docs/5.3/getting-started/introduction/) for information on the framework contents, templates, examples, and more.



## Status



[![Build Status](https://img.shields.io/github/actions/workflow/status/twbs/bootstrap/js.yml?branch=main&label=JS%20Tests&logo=github)](https://github.com/twbs/bootstrap/actions/workflows/js.yml?query=workflow%3AJS+branch%3Amain)

[![npm version](https://img.shields.io/npm/v/bootstrap?logo=npm&logoColor=fff)](https://www.npmjs.com/package/bootstrap)

[![Gem version](https://img.shields.io/gem/v/bootstrap?logo=rubygems&logoColor=fff)](https://rubygems.org/gems/bootstrap)

[![Meteor Atmosphere](https://img.shields.io/badge/meteor-twbs%3Abootstrap-blue?logo=meteor&logoColor=fff)](https://atmospherejs.com/twbs/bootstrap)

[![Packagist Prerelease](https://img.shields.io/packagist/vpre/twbs/bootstrap?logo=packagist&logoColor=fff)](https://packagist.org/packages/twbs/bootstrap)

[![NuGet](https://img.shields.io/nuget/vpre/bootstrap?logo=nuget&logoColor=fff)](https://www.nuget.org/packages/bootstrap/absoluteLatest)

[![Coverage Status](https://img.shields.io/coveralls/github/twbs/bootstrap/main?logo=coveralls&logoColor=fff)](https://coveralls.io/github/twbs/bootstrap?branch=main)

[![CSS gzip size](https://img.badgesize.io/twbs/bootstrap/main/dist/css/bootstrap.min.css?compression=gzip&label=CSS%20gzip%20size)](https://github.com/twbs/bootstrap/blob/main/dist/css/bootstrap.min.css)

[![CSS Brotli size](https://img.badgesize.io/twbs/bootstrap/main/dist/css/bootstrap.min.css?compression=brotli&label=CSS%20Brotli%20size)](https://github.com/twbs/bootstrap/blob/main/dist/css/bootstrap.min.css)

[![JS gzip size](https://img.badgesize.io/twbs/bootstrap/main/dist/js/bootstrap.min.js?compression=gzip&label=JS%20gzip%20size)](https://github.com/twbs/bootstrap/blob/main/dist/js/bootstrap.min.js)

[![JS Brotli size](https://img.badgesize.io/twbs/bootstrap/main/dist/js/bootstrap.min.js?compression=brotli&label=JS%20Brotli%20size)](https://github.com/twbs/bootstrap/blob/main/dist/js/bootstrap.min.js)

[![Backers on Open Collective](https://img.shields.io/opencollective/backers/bootstrap?logo=opencollective&logoColor=fff)](#backers)

[![Sponsors on Open Collective](https://img.shields.io/opencollective/sponsors/bootstrap?logo=opencollective&logoColor=fff)](#sponsors)



## What's included



Within the download you'll find the following directories and files, logically grouping common assets and providing both compiled and minified variations.



  Download contents



  ```text

  bootstrap/

  ├── css/

  │   ├── bootstrap-grid.css

  │   ├── bootstrap-grid.css.map

  │   ├── bootstrap-grid.min.css

  │   ├── bootstrap-grid.min.css.map

  │   ├── bootstrap-grid.rtl.css

  │   ├── bootstrap-grid.rtl.css.map

  │   ├── bootstrap-grid.rtl.min.css

  │   ├── bootstrap-grid.rtl.min.css.map

  │   ├── bootstrap-reboot.css

  │   ├── bootstrap-reboot.css.map

  │   ├── bootstrap-reboot.min.css

  │   ├── bootstrap-reboot.min.css.map

  │   ├── bootstrap-reboot.rtl.css

  │   ├── bootstrap-reboot.rtl.css.map

  │   ├── bootstrap-reboot.rtl.min.css

  │   ├── bootstrap-reboot.rtl.min.css.map

  │   ├── bootstrap-utilities.css

  │   ├── bootstrap-utilities.css.map

  │   ├── bootstrap-utilities.min.css

  │   ├── bootstrap-utilities.min.css.map

  │   ├── bootstrap-utilities.rtl.css

  │   ├── bootstrap-utilities.rtl.css.map

  │   ├── bootstrap-utilities.rtl.min.css

  │   ├── bootstrap-utilities.rtl.min.css.map

  │   ├── bootstrap.css

  │   ├── bootstrap.css.map

  │   ├── bootstrap.min.css

  │   ├── bootstrap.min.css.map

  │   ├── bootstrap.rtl.css

  │   ├── bootstrap.rtl.css.map

  │   ├── bootstrap.rtl.min.css

  │   └── bootstrap.rtl.min.css.map

  └── js/

      ├── bootstrap.bundle.js

      ├── bootstrap.bundle.js.map

      ├── bootstrap.bundle.min.js

      ├── bootstrap.bundle.min.js.map

      ├── bootstrap.esm.js

      ├── bootstrap.esm.js.map

      ├── bootstrap.esm.min.js

      ├── bootstrap.esm.min.js.map

      ├── bootstrap.js

      ├── bootstrap.js.map

      ├── bootstrap.min.js

      └── bootstrap.min.js.map

  ```



We provide compiled CSS and JS (`bootstrap.*`), as well as compiled and minified CSS and JS (`bootstrap.min.*`). [Source maps](https://developers.google.com/web/tools/chrome-devtools/javascript/source-maps) (`bootstrap.*.map`) are available for use with certain browsers' developer tools. Bundled JS files (`bootstrap.bundle.js` and minified `bootstrap.bundle.min.js`) include [Popper](https://popper.js.org/).



## Bugs and feature requests



Have a bug or a feature request? Please first read the [issue guidelines](https://github.com/twbs/bootstrap/blob/main/.github/CONTRIBUTING.md#using-the-issue-tracker) and search for existing and closed issues. If your problem or idea is not addressed yet, [please open a new issue](https://github.com/twbs/bootstrap/issues/new/choose).



## Documentation



Bootstrap's documentation, included in this repo in the root directory, is built with [Hugo](https://gohugo.io/) and publicly hosted on GitHub Pages at . The docs may also be run locally.



Documentation search is powered by [Algolia's DocSearch](https://docsearch.algolia.com/).



### Running documentation locally



1. Run `npm install` to install the Node.js dependencies, including Hugo (the site builder).

2. Run `npm run test` (or a specific npm script) to rebuild distributed CSS and JavaScript files, as well as our docs assets.

3. From the root `/bootstrap` directory, run `npm run docs-serve` in the command line.

4. Open `http://localhost:9001/` in your browser, and voilà.



Learn more about using Hugo by reading its [documentation](https://gohugo.io/documentation/).



### Documentation for previous releases



You can find all our previous releases docs on .



[Previous releases](https://github.com/twbs/bootstrap/releases) and their documentation are also available for download.



## Contributing



Please read through our [contributing guidelines](https://github.com/twbs/bootstrap/blob/main/.github/CONTRIBUTING.md). Included are directions for opening issues, coding standards, and notes on development.



Moreover, if your pull request contains JavaScript patches or features, you must include [relevant unit tests](https://github.com/twbs/bootstrap/tree/main/js/tests). All HTML and CSS should conform to the [Code Guide](https://github.com/mdo/code-guide), maintained by [Mark Otto](https://github.com/mdo).



Editor preferences are available in the [editor config](https://github.com/twbs/bootstrap/blob/main/.editorconfig) for easy use in common text editors. Read more and download plugins at .



## Community



Get updates on Bootstrap's development and chat with the project maintainers and community members.



- Follow [@getbootstrap on Twitter](https://twitter.com/getbootstrap).

- Read and subscribe to [The Official Bootstrap Blog](https://blog.getbootstrap.com/).

- Ask questions and explore [our GitHub Discussions](https://github.com/twbs/bootstrap/discussions).

- Discuss, ask questions, and more on [the community Discord](https://discord.gg/bZUvakRU3M) or [Bootstrap subreddit](https://reddit.com/r/bootstrap).

- Chat with fellow Bootstrappers in IRC. On the `irc.libera.chat` server, in the `#bootstrap` channel.

- Implementation help may be found at Stack Overflow (tagged [`bootstrap-5`](https://stackoverflow.com/questions/tagged/bootstrap-5)).

- Developers should use the keyword `bootstrap` on packages which modify or add to the functionality of Bootstrap when distributing through [npm](https://www.npmjs.com/browse/keyword/bootstrap) or similar delivery mechanisms for maximum discoverability.



## Versioning



For transparency into our release cycle and in striving to maintain backward compatibility, Bootstrap is maintained under [the Semantic Versioning guidelines](https://semver.org/). Sometimes we screw up, but we adhere to those rules whenever possible.



See [the Releases section of our GitHub project](https://github.com/twbs/bootstrap/releases) for changelogs for each release version of Bootstrap. Release announcement posts on [the official Bootstrap blog](https://blog.getbootstrap.com/) contain summaries of the most noteworthy changes made in each release.



## Creators



**Mark Otto**



- 

- 



**Jacob Thornton**



- 

- 



## Thanks





  BrowserStack




Thanks to [BrowserStack](https://www.browserstack.com/) for providing the infrastructure that allows us to test in real browsers!





  Netlify




Thanks to [Netlify](https://www.netlify.com/) for providing us with Deploy Previews!



## Sponsors



Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [[Become a sponsor](https://opencollective.com/bootstrap#sponsor)]



[![OC sponsor 0](https://opencollective.com/bootstrap/sponsor/0/avatar.svg)](https://opencollective.com/bootstrap/sponsor/0/website)

[![OC sponsor 1](https://opencollective.com/bootstrap/sponsor/1/avatar.svg)](https://opencollective.com/bootstrap/sponsor/1/website)

[![OC sponsor 2](https://opencollective.com/bootstrap/sponsor/2/avatar.svg)](https://opencollective.com/bootstrap/sponsor/2/website)

[![OC sponsor 3](https://opencollective.com/bootstrap/sponsor/3/avatar.svg)](https://opencollective.com/bootstrap/sponsor/3/website)

[![OC sponsor 4](https://opencollective.com/bootstrap/sponsor/4/avatar.svg)](https://opencollective.com/bootstrap/sponsor/4/website)

[![OC sponsor 5](https://opencollective.com/bootstrap/sponsor/5/avatar.svg)](https://opencollective.com/bootstrap/sponsor/5/website)

[![OC sponsor 6](https://opencollective.com/bootstrap/sponsor/6/avatar.svg)](https://opencollective.com/bootstrap/sponsor/6/website)

[![OC sponsor 7](https://opencollective.com/bootstrap/sponsor/7/avatar.svg)](https://opencollective.com/bootstrap/sponsor/7/website)

[![OC sponsor 8](https://opencollective.com/bootstrap/sponsor/8/avatar.svg)](https://opencollective.com/bootstrap/sponsor/8/website)

[![OC sponsor 9](https://opencollective.com/bootstrap/sponsor/9/avatar.svg)](https://opencollective.com/bootstrap/sponsor/9/website)



## Backers



Thank you to all our backers! 🙏 [[Become a backer](https://opencollective.com/bootstrap#backer)]



[![Backers](https://opencollective.com/bootstrap/backers.svg?width=890)](https://opencollective.com/bootstrap#backers)



## Copyright and license



Code and documentation copyright 2011–2023 the [Bootstrap Authors](https://github.com/twbs/bootstrap/graphs/contributors). Code released under the [MIT License](https://github.com/twbs/bootstrap/blob/main/LICENSE). Docs released under [Creative Commons](https://creativecommons.org/licenses/by/3.0/).