What is Bootstrap 5?
Bootstrap 5 overview: mobile-first, no jQuery, 12-column grid, 60+ components, and CDN setup.
What is Bootstrap 5? Bootstrap 5 is the world's most popular CSS framework for building responsive, mobile-first websites quickly. It provides pre-built components, a powerful grid system, and utility classes.
No jQuery dependency (vanilla JavaScript) Mobile-first responsive grid 60+ pre-built components Utility API for rapid customization CSS custom properties (variables) <!-- CDN -->
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
Test your understanding before moving on
1. What does Bootstrap 5 NOT require unlike Bootstrap 4?
A. CSS
B. JavaScript
C. jQuery
D. HTML
💡 Bootstrap 5 dropped the jQuery dependency — uses vanilla JavaScript.
2. Bootstrap follows which design approach?
A. Desktop-first
B. Content-first
C. Mobile-first
D. Grid-first
💡 Mobile-first: styles written for small screens with larger breakpoints added via media queries.
3. How many columns is Bootstrap grid based on?
A. 10
B. 12
C. 16
D. 24
💡 Bootstrap uses a 12-column grid system.
4. Which attribute prefix activates Bootstrap JS components?
A. data-bootstrap-
B. data-bs-
C. bs-
D. bootstrap-
💡 Bootstrap 5 uses data-bs- prefix for all JavaScript component attributes.