What is the reason for component libraries not including CSS imports?

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Component libraries do not include CSS imports because they aim to provide modular and customizable components that can be used in different projects with different styles. Including CSS imports would limit the flexibility of the library and prevent developers from styling the components according to their specific needs. Additionally, including CSS imports could create conflicts with other stylesheets and increase the chance of compatibility issues. Therefore, component libraries often provide guidelines or optional stylesheets for developers to use and customize the components in their own projects.