Pros & Cons Given by Jasmine
Bulma provides predefined classes for CSS Flexbox which makes it super easy to get started with CSS Flexbox, while keeping your code sane and structured.
Lightweight and Simple
Bulma is 73kb minimized, and 10kb Gzipped which is relatively small when compared to other CSS frameworks like BootStrap. When you combine this with the sheer simplicity of Bulma, it's a an easy pick for me.
Jasmine has written 2 pros and cons thus far.