Bootstrap 3 Tutorial

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Bootstrap is the most popular HTML, CSS, and JavaScript framework for developing responsive, mobile-first websites.

Bootstrap is completely free to download and use!

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Try it Yourself Examples

This Bootstrap tutorial contains hundreds of Bootstrap examples.

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

Bootstrap 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>

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Bootstrap References

At W3Schools you will find a complete Bootstrap reference of all CSS classes, Components, and JavaScript plugins - all with "Try it Yourself" examples:

Bootstrap Themes / Templates

We have made some Bootstrap Templates you can play around with. They are completely free to use:

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Browse Basic Templates

Bootstrap 5 vs. Bootstrap 3 & 4

This tutorial follows Bootstrap 3, which was released in 2013. However, we also cover newer versions; Bootstrap 4 (released 2018) and Bootstrap 5 (released 2021).

Bootstrap 5 is the newest version of Bootstrap; with new components, faster stylesheets, more responsiveness etc. 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.

Did You Know?

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