How to make a service for managing css classes in Angular?

Question

Angular

I'm a noob in Angular and I can't solve the problem, I have no idea even.
I have many components TextInput, SubmitButton, List etc.
Each has its own set of css classes that change their appearance, for example, in TextInput it is fillded, empy, not-active.
I need to change the TextInput class from SubmitButton.
How? Is there any example? I did not find an implementation of this through services, and is it correct to do this at all?
help me please

Answer 1

Without an example, it is not particularly clear what you need. As I understand it, you need to manage child elements from the parent component. To do this, you can use .parent .child { ... } in CSS. They can be written in global css if you don't want to repeat the same code in the same components.