Should we nest all of our HTML in a div element with the class container-fluid?

Hi. My english is very limited, sorry. I´m newbie. I'm learning with freecodecamp.com. In Use Responsive Design with Bootstrap Fluid Containers lesson I can read: "To get started, we should nest all of our HTML in a div element with the class container-fluid". (https://www.freecodecamp.com/challenges/use-responsive-design-with-bootstrap-fluid-containers) Is it really necessary? Thanks for your help, Josan

It is not necessary for all things, It doesn't hurt though. Even the container-fluid class contains gutter spacing on the edges, it's just not restricted to 1200px width anymore.

The container/-fluid class(es) are needed when using the grid system to be done correctly.

Saj

Thanks, Saj.