'how to customize design of CSS Framework for developing responsive and mobile-first websites

I want to use a CSS Framework for developing responsive and mobile-first websites like bootstrap, ant design, may be Tailwind CSS, or material, any framework

But I have some problems, when I want to update, re-design, edit style(edit css) to have new look, new design, but with some framework, it's hard to edit and customize

So anyone has experience on this part: which framework is fully support for all component and easy to edit css to customize?

Thanks



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