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Learn how to create responsive, mobile-first websites with Bootstrap 5, the newest version of the popular HTML, CSS, and JavaScript framework. Find hundreds of examples, exercises, quizzes, and tips at W3Schools.
Learn how to use Bootstrap 5, a free front-end framework for faster and easier web development. Find out the differences, advantages, and features of Bootstrap 5, and how to include it from a CDN or download it from getbootstrap.com.
Learn how to use Bootstrap, the world’s most popular framework for responsive, mobile-first sites, with jsDelivr and a template starter page. Find out the required HTML5 doctype, responsive meta tag, box-sizing, Reboot, and more.
Learn how to use Bootstrap's production-ready CSS and JavaScript via CDN or package manager. Find out about global settings, components, and community resources.
Use our powerful mobile-first flexbox grid to build layouts of all shapes and sizes thanks to a twelve column system, six default responsive tiers, Sass variables and mixins, and dozens of predefined classes.
Learn how to use Bootstrap 5, the most popular framework for responsive, mobile-first websites. Follow the tutorial link or try it yourself online with W3Schools.com.
With Bootstrap, a navigation bar can extend or collapse, depending on the screen size. A standard navigation bar is created with the .navbar class, followed by a responsive collapsing class: .navbar-expand-xxl|xl|lg|md|sm (stacks the navbar vertically on xxlarge, extra large, large, medium or small screens).