What is a framework?

Question

For example Bootstrap

Answer 1

Bootstrap is a free and open-source front-end web framework for designing websites and web applications. It contains HTML- and CSS-based design templates for typography, forms, buttons, navigation and other interface components, as well as optional JavaScript extensions

Answer 2

as library

Answer 3

@Mario I give people a possibility to get badges answering easy questions 😁

Answer 4

https://www.sololearn.com/discuss/457465/?ref=app
https://www.sololearn.com/discuss/338197/?ref=app

ever heard of Google and/or Wikipedia?