Chapter 4: Bootstrap Grid: Mastering the Most Useful Flexbox Properties

by Ahmed Bouchefra

In this article, I’ll introduce you to the key Bootstrap CSS classes for building layouts with the Bootstrap grid system.

Bootstrap 4 uses Flexbox as the basis for its grid system. I’ll explain the Flexbox CSS properties that underlie the new grid’s functionality, and define how the Bootstrap flex utility classes work to help you build awesome layouts quickly and painlessly.

What is Flexbox?

Let’s first introduce Flexbox. It stands for flexible box, and it’s a cutting-edge CSS layout system that makes it easy to create layouts for dynamic or unknown screen sizes. (The flex container has the ability to adjust and control the size of its child elements ...

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