Wordpress and review widget "Star ratings", how to modify it via css?

Hello good people, i’m having some problem with finding the documentation about how to modify the widget “star ratings” via css.
The only thing i’ve already found is this https://developers.klaviyo.com/en/docs/use_css_to_style_klaviyo_reviews_widgets, but it seems that is talking about another widget.

If you’re wondering “why would you like to modify via css and not in the klaviyo dedicated sections” is because i need to modify it “individually”, not changing it the same widget in the entirely website.