Bulma

Bulma is a UI framework that takes a different approach to user interface building.

The framework is coded in Sass, but designed to use the CSS3 Flexbox feature, which makes building native responsive layouts much easier.

This also ensures that Web pages and layouts built with Bulma work out-of-the-box in most browsers in the same, consistent way.

Built-in components:

Grid system

Navbar

Media objects

Buttons

Forms

Typography elements

Tags

Message boxes

Notification bar

Icons

Card boxes