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Bootstrap 4 Tutorial

Bootstrap 4 is the newest version of Bootstrap, which is the most popular HTML, CSS, and JavaScript framework for developing responsive, mobile-first websites.

Bootstrap 4 is completely free to download and use!

Start learning Bootstrap 4 now »

Learn Bootstrap 4


Try it Yourself Examples

This Bootstrap 4 tutorial contains hundreds of Bootstrap 4 examples.

With our online editor, you can edit the code, and click on a button to view the result.

Responsive Bootstrap Page

Bootstrap 4 Example

<div class="jumbotron text-center">
  <h1>My First Bootstrap Page</h1>
  <p>Resize this responsive page to see the effect!</p>
</div>

<div class="container">
  <div class="row">
    <div class="col-sm-4">
      <h3>Column 1</h3>
      <p>Lorem ipsum dolor..</p>
    </div>
    <div class="col-sm-4">
      <h3>Column 2</h3>
      <p>Lorem ipsum dolor..</p>
    </div>
    <div class="col-sm-4">
      <h3>Column 3</h3>
      <p>Lorem ipsum dolor..</p>
    </div>
  </div>
</div>
Try it Yourself »

Click on the "Try it Yourself" button to see how it works.



Bootstrap 5 vs. Bootstrap 3 & 4

This tutorial follows Bootstrap 4, which was released in 2018, as an upgrade to Bootstrap 3, with new components, faster stylesheetc, more responsiveness, etc.

Bootstrap 5 (released 2021) is the newest version of Bootstrap; It supports the latest, stable releases of all major browsers and platforms. However, Internet Explorer 11 and down is not supported.

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

Note: Bootstrap 3 and Bootstrap 4 is still supported by the team for critical bugfixes and documentation changes, and it is perfectly safe to continue to use them. However, new features will NOT be added to them.


Bootstrap 4 Basic Template

We have created a responsive starter template with Bootstrap 4. You are free to modify, save, share, and use it in your projects:


Bootstrap References

A complete list of all Bootstrap 4 CSS classes with description and examples:

If you want to do more with Bootstrap components, see our complete Bootstrap 4 JavaScript/jQuery reference - all with "Try it Yourself" examples:


Bootstrap 4 Exercises

Test Yourself With Exercises

Exercise:

Use a Bootstrap class to center the following text:

<p class=""> Hello World!</p>

Start the Exercise


Bootstrap 4 Quiz Test

Test your Bootstrap 4 skills at W3Schools!

Start Bootstrap 4 Quiz!


Did You Know?

W3.CSS is an excellent alternative to Bootstrap 4.

W3.CSS is smaller, faster, and easier to use.

If you want to learn W3.CSS, go to our W3.CSS Tutorial.