The Bootstrap 4 Grid Deconstructed

While upgrading my skillset and implementing an Angular based website, I looked at the Bootstrap Grid system and decided to deep-dive into it and see what makes it work. In this post, I will explain the flexbox system as used by the Bootstrap Grid, however, it is by no means a complete investigation of the flexbox system. I will introduce the necessary concepts to understand what makes the Bootstrap Grid work and why certain values of CSS properties here are chosen.