Where can I change default css styles for Brave browser?

I am using personalized high contrast visuals in my Windows 10 OS but this overrides browser rendering for all webpages.
How can I set the css styles rendering to default/normal?
Stackoverflow does not cover Brave in this article.

Hello @MarceloFavio

according to that llink https://beingsunnies.com/2021/05/12/how-to-change-default-css-of-google-chrome/ chrome drop it so it would not be in brave also so look for extensions