Bootstrap 3 Tutorial

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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 »

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

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:

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