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Bulma: Free, open source, and modern CSS framework based on Flexbox

Bulma is a free, open source CSS framework based on Flexbox and built with Sass. It's 100% responsive, fully modular, and available for free.

Bulma is a free, open source CSS framework based on Flexbox and used by more than 200,000 developers. It provides a modern, responsive design system that allows developers to create beautiful, responsive web interfaces with ease. Bulma is highly customizable and comes with a wide range of pre-designed components and utilities, making it a popular choice for web development projects.

Unique Visits

135K

4500 / day

Total Views

150K

5000 / day

Visit Duration, avg.

3.8 min

2.5 pages per visit

Bounce Rate

40%

  • Domain Rating

  • Domain Authority

  • Citation Level

Founded in

2016

Supported Languages

English, etc

Website Key Features

Flexbox-based

Utilizes Flexbox for layout, ensuring a more efficient and predictable layout model.

Responsive Design

Designed to be responsive, ensuring websites look great on all devices.

Modular

Composed of 39 .sass files that can be imported individually or all at once.

Modern

Embraces modern web standards and practices, including CSS variables and Flexbox.

Customizable

Easily customizable with Sass variables, allowing for a tailored design system.

Pre-designed Components

Includes a wide range of pre-designed components like buttons, forms, and navigation bars.

Utilities

Offers a variety of utility classes for spacing, typography, and more.

Community Support

Backed by a large and active community, providing a wealth of resources and extensions.

Documentation

Comprehensive documentation available, making it easy to get started and find information.

No JavaScript

Pure CSS framework, meaning no JavaScript is required for its core functionality.

Additional information

License

Bulma is released under the MIT license, making it free to use for personal and commercial projects.

GitHub Repository

The source code for Bulma is available on GitHub, allowing for contributions and forks.

Browser Compatibility

Bulma is compatible with all modern browsers, including Chrome, Firefox, Safari, Edge, and Opera.

Extensions

There are numerous extensions and themes available for Bulma, enhancing its functionality and design options.

Learning Resources

A variety of tutorials, courses, and articles are available to help developers learn and master Bulma.

HTTP headers

Security headers report is a very important part of user data protection. Learn more about http headers for bulma.io