The Bulma framework is a free CSS solution based on the Flexbox layout. With Bulma, the extensive range of built-in features means faster turnaround and less CSS code writing.
The framework is mobile-first and works similarly to the popular Bootstrap CSS. Bulma is very well documented and comes with an active community of people ready to help with projects. It comes packed with all of the goods you would expect from a CSS framework, including diverse typography, buttons, forms, tables, and more.
Bulma is packed with a vertical alignment solution, layouts, and various media objects. The Bulma setup is built with Sass, which means that you can design your framework step by step with only the features you need.