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Bootstrap 3 Tutorial


Bootstrap 3

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

Bootstrap is completely free to download and use!

Start learning Bootstrap 3 now!


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="container">
  <div class="jumbotron">
    <h1>My First Bootstrap Page</h1>
    <p>Resize this responsive page to see the effect!</p>
  </div>
  <div class="row">
    <div class="col-sm-4">
      <h3>Column 1</h3>
      <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit...</p>
      <p>Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris...</p>
    </div>
    <div class="col-sm-4">
      <h3>Column 2</h3>
      <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit...</p>
      <p>Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris...</p>
    </div>
    <div class="col-sm-4">
      <h3>Column 3</h3>
      <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit...</p>
      <p>Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris...</p>
    </div>
  </div>
</div>
Try it Yourself »

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Bootstrap Quiz Test

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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

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


Did You Know?

W3.CSS is an alternative to Bootstrap.

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

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