CSS Grid Layout
A CSS Grid is a layout that is going to save you a lot of time in your website design. Having a strong understanding of core CSS will allow you to easily create user interfaces without having to use Bootstrap.
Why CSS Grid?
CSS Grid is going to be the standard when moving forward with website design. CSS Girds is a great way to present a website, however, it may run into issues with older browsers, however, that is starting to end.
Unlike Bootstrap which is a third party framework, CSS Grid is a core framework and is overall considered a better alternative then Bootstrap. Favoring core technologies is an advancement because you are always assured the technology will continue to advance whereas third part applications risk losing popularity