What is Bootstrap?
Bootstrap is a frontend toolkit built around reusable CSS classes, responsive layout primitives, and optional JavaScript components.
Core concept
Start with the problem Bootstrap solves: creating consistent responsive interfaces without writing every layout and component style from scratch. Explain the grid, utilities, components, browser-ready CSS, and the difference between a framework and a component library.
Using it in a real interface
Use Bootstrap when a project benefits from a known design vocabulary and fast responsive implementation. It is less appropriate when a product requires a completely unique visual system and most Bootstrap defaults would need to be overridden.
Implementation notes
A good first page should contain Bootstrap CSS, a viewport meta tag, a semantic HTML structure, and a small component. Developers should understand that Bootstrap provides building blocks; the application\'s HTML, content hierarchy, accessibility, and business logic are still their responsibility.