Bootstrap Introduction

Bootstrap is the most popular CSS framework for building responsive, mobile-first websites. It gives you ready-made, good-looking components (buttons, cards, navbars, forms) and a flexible grid, all by adding classes to your HTML. You write little or no CSS yourself.

To use Bootstrap, link its stylesheet in your page (from a CDN). Add the JavaScript bundle too if you want interactive components such as modals and dropdowns. Every example in this course already includes the link so you can run it.