CSS Modules: A Comprehensive Overview and Rationale. What are they and why do you need them?

CSS files in which all class names and animation names are scoped locally by default.

# CSS Modules: A Comprehensive Overview and Rationale

CSS Modules are a CSS file type in which all class names and animation names are scoped locally by default. They are instrumental in writing CSS that is scoped to individual components, making styles more maintainable, understandable, and preventing global scope leaks.