React.js and CSS required knowledge?

Question

css

Good day.
Tell me please.
Let's say I can't master CSS3 -> positioning of elements, that is: flex, display, Block and so on :(

But, I want to learn React.js with the subsequent admission to work.

The essence of the question: Is not knowing positioning in React critical. js???? :3

Answer 1

How did you jump from CSS to React like that?
You can't just pick up and learn React. Do you know JavaScript?
In general, becoming any developer is very difficult: https://github.com/zualex/devmap