themeforest - visual composer

Hi guys
If i want use visual composer in my theme, i must be style default elements (such as link or paragraph) in my style.css?
i want be sure themeforest quality team not problem in this case.

please anyone answer my question

It’s dependent on your theme. if you need to style something, you can write code in your style.css. For this case, ThemeForest quality team not say any problem.
Thank you