Start with Bootstrap 5 

Start with Bootstrap, the world’s most popular framework for building responsive mobile-friendly websites, with jsDelivr and a home page template.

Bootstrap 5

Bootstrap 5 is the latest version of Bootstrap, the most popular HTML, CSS, and JavaScript framework for building responsive, mobile-first websites.

Bootstrap 5 is absolutely free to download and use!

Bootstrap 5 was officially released on May 5th, 2021. Key changes include: New offcanvas menu component. Removed dependency on jQuery in favor of vanilla JavaScript.

Bootstrap 5 is designed to be used without jQuery, but it’s still possible to use our components with jQuery.

What is the difference between Bootstrap and Bootstrap 5?
It’s an open-source framework from late 2011 that’s used to make responsive websites faster and easier with a mobile-first approach. Bootstrap is available for HTML, CSS and JS.

Bootstrap 5 vs Bootstrap 3 & 4

Bootstrap 5 is the latest version of Bootstrap; with new components, faster style sheet and more responsiveness.

Bootstrap 5 supports the latest stable versions of all major browsers and platforms. However, Internet Explorer 11 and lower is not supported.

The main difference between Bootstrap 5 and Bootstrap 3 & 4 is that Bootstrap 5 switched to JavaScript instead of jQuery.

Note: Bootstrap 3 and Bootstrap 4 are still supported by the Critical Bug Fixes and Documentation Changes team and are perfectly safe to continue using. However, NO new features will be added to them.

What is Bootstrap?

Bootstrap is a free, open-source CSS framework geared towards responsive front-end web development for mobile devices. It includes CSS and JavaScript based design templates for typography, forms, buttons, navigation and other interface components.
Bootstrap also gives you the ability to easily create responsive designs

Responsive Web Design (RWD)

Responsive web design (RWD) is a web development approach that produces dynamic changes in the appearance of a website depending on the screen size and orientation of the mod it is viewed with.

Bootstrap 5 Example

<!doctype html>
<html lang="en">
  <head>
    <!-- Required meta tags -->
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">

    <!-- Bootstrap CSS -->
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">

    <title>Hello, world!</title>
  </head>
  <body>
    <h1>Hello, world!</h1>

    <!-- Optional JavaScript; choose one of the two! -->

    <!-- Option 1: Bootstrap Bundle with Popper -->
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-MrcW6ZMFYlzcLA8Nl+NtUVF0sA7MsXsP1UyJoMp4YLEuNSfAP+JcXn/tWtIaxVXM" crossorigin="anonymous"></script>

    <!-- Option 2: Separate Popper and Bootstrap JS -->
    <!--
    <script src="https://cdn.jsdelivr.net/npm/@popperjs/core@2.9.2/dist/umd/popper.min.js" integrity="sha384-IQsoLXl5PILFhosVNubq5LC7Qb9DXgDA9i+tQ8Zj3iwWAwPtgFTxbJ8NT4GN1R8p" crossorigin="anonymous"></script>
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.min.js" integrity="sha384-cVKIPhGWiC2Al4u+LWgxfKTRIcfu0JTxR+EQDz/bgldoEyl4H0zUF0QKbrJ0EcQF" crossorigin="anonymous"></script>
    -->
  </body>
</html>

Why you have to Use Bootstrap?

Easy to Use: Required basic knowledge of HTML and CSS for start with Bootstrap
Responsive features: Bootstrap’s responsive CSS render with almost devices like tab, mobile, laptop, desktop
Mobile-first approach: In Bootstrap, mobile-first styles are part of the core framework
Browser Compatibility: Bootstrap 5 is compatible with all modern browsers (Chrome, Firefox, Edge, Safari and Opera). Note that if you need IE11 and lower support, you must use either BS4 or BS3.

How you can download or use Bootstrap 5?

Include Bootstrap 5 from a CDN
Download from getbootstrap.com

Download Links

Benefits of using Bootstrap 5 CDN:

Most CDNs ensure that once a user requests a file from them, it is served from the server closest to them, which also results in faster loading time.

Usage of JavaScript?

Bootstrap 5 uses JavaScript for various components (like modals, tooltips, popovers, etc.).