Using CSS modules provides scoped styling and eliminates CSS conflicts in React applications while maintaining the benefits of traditional CSS workflows. As the creator of CoreUI, a widely used open-source UI library, I’ve implemented CSS modules in numerous React projects for component isolation, theme customization, and maintainable styling architectures in enterprise applications. From my expertise, the most effective approach is to use .module.css files with imported class names. This method provides automatic scope isolation, prevents style leakage between components, and maintains excellent development experience with standard CSS syntax.

CSS modules in Vue provide scoped styling with automatic class name generation, preventing style conflicts while maintaining full CSS feature support. As the creator of CoreUI, a widely used open-source UI library, I’ve implemented CSS modules in Vue components for theme systems, component libraries, and enterprise applications requiring strict style isolation. From my expertise, the most effective approach is to use the module attribute in Vue’s style tags. This method provides automatic scope isolation, supports all CSS features including preprocessors, and integrates seamlessly with Vue’s template system.