This crash course was created by Brad Traversy to help you learn the basics of Flexbox. Flexbox is a very important and useful tool in CSS.
Here's the link to the YouTube video if you're interested in learning how to use Flexbox.
A more efficient way to lay out, align, and distribute space among items in a container.
Flexbox usually solves tricky problems including how to position or dynamically position elements on a page.
Flexbox makes building a website layout (and making it responsive) much, much easier.