bulma 0,20,42,9,19,0,54,17 editorconfig Bower npm

Modern CSS framework based on Flexbox

2 years after MIT


npm npm Join the chat at https://gitter.im/jgthms/bulma

Bulma is a modern CSS framework based on Flexbox.

Bulma: a Flexbox CSS framework

Quick install

Bulma is in early but active development! Try it out now:


npm install bulma


bower install bulma



Feel free to raise an issue or submit a pull request.

CSS only

Bulma is a CSS framework. As such, the sole output is a single CSS file: bulma.css

You can either use that file, "out of the box", or download the Sass source files to customize the variables.

There is no JavaScript included. People generally want to use their own JS implementation (and usually already have one). Bulma can be considered "environment agnostic": it's just the style layer on top of the logic.

Browser Support

Bulma uses autoprefixer to make (most) Flexbox features compatible with earlier browser versions. According to Can I use, Bulma is compatible with recent versions of:

  • Chrome
  • Edge
  • Firefox
  • Opera
  • Safari

Internet Explorer (10+) is only partially supported.


The documentation resides in the docs directory, and is built with the Ruby-based Jekyll tool.

Browse the online documentation here.

Related projects

Copyright and license

Code copyright 2017 Jeremy Thomas. Code released under the MIT license.

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Top Contributors

jgthms PuerkitoBio hummlas wolfika tsq danielbayerlein lostm1nd brendanmoore Chariyski feimosi necinc mschinis yaph BlueAccords EdJoPaTo


package version
dev autoprefixer ^7.1.1
node-sass ^4.5.3
postcss-cli ^4.1.0
rimraf ^2.6.1


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