Today in the work we had a small discussion on whether it is important to learn CSS, since there are countless libraries that do

Answer 1

Daniel Montero Take a look at this article:

https://hackernoon.com/frameworks-libraries-both-or-none-my-honest-opinion-3a21ddf75323

You will better understand it!

Answer 2

Yes, learning CSS is quite important. Maybe not to style the page as you have many libraries for that, but it's always important to know the fundamentals and how things work out. Because of most styling libraries work with classes, which are coded in CSS, it would help you a lot if you could understand how they work