CSS framework and component library are two different concepts, but there is a certain relationship between them.
CSS framework is a tool that provides a complete set of styles, layouts and components for quickly building web pages and applications. Frameworks usually include a series of predefined CSS classes and styles that can help developers quickly build pages and provide consistent visual styles and interactive effects.
The component library is a library designed and developed for a specific component or module. It provides a series of reusable UI components, such as buttons, form elements, navigation menus, cards, etc. Each component in the component library has independent styles and behaviors and can be easily reused in different projects.
So, the difference between a CSS framework and a component library is:
Scope: A CSS framework covers the styling, layout, and components of an entire page or application, while Component libraries only refer to specific UI components or modules.
Purpose: The CSS framework aims to improve development efficiency and consistency, and the component library aims to provide reusable UI components and modules.
How to use: The CSS framework usually needs to be fully applied in the project, while the components in the component library can be introduced and used individually as needed.
It should be noted that many CSS frameworks include some predefined component libraries, such as buttons, form elements, and navigation menus in Bootstrap. Therefore, CSS frameworks and component libraries are not completely independent concepts, they can complement and extend each other.