Components

Dozens of reusable components are built into Bootstrap to provide navigation, alerts, popovers, and much more.

Button groups

Use button groups to join multiple buttons together as one composite component. Build them with a series of <a> or <button> elements.

You can also combine sets of <div class="btn-group"> into a <div class="btn-toolbar"> for more complex projects.

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Example markup

Here's how the HTML looks for a standard button group built with anchor tag buttons:

<div class="btn-group">
  <a class="btn" href="#">1</a>
  <a class="btn" href="#">2</a>
  <a class="btn" href="#">3</a>
</div>

And with a toolbar for multiple groups:

<div class="btn-toolbar">
  <div class="btn-group">
    ...
  </div>
</div>

Checkbox and radio flavors

Button groups can also function as radios, where only one button may be active, or checkboxes, where any number of buttons may be active. View the Javascript docs for that.

Get the javascript »


Heads up

CSS for button groups is in a separate file, button-groups.less.

Split button dropdowns

Building on the button group styles and markup, we can easily create a split button. Split buttons feature a standard action on the left and a dropdown toggle on the right with contextual links.

Example markup

Similar to a button group, our markup uses regular button markup, but with a handful of additions to refine the style and support Bootstrap's dropdown jQuery plugin.

<div class="btn-group">
  <a class="btn" href="#">Action</a>
  <a class="btn dropdown-toggle" data-toggle="dropdown" href="#">
    <span class="caret"></span>
  </a>
  <ul class="dropdown-menu">
    <!-- dropdown menu links -->
  </ul>
</div>

Multi-page pagination

When to use

Ultra simplistic and minimally styled pagination inspired by Rdio, great for apps and search results. The large block is hard to miss, easily scalable, and provides large click areas.

Stateful page links

Links are customizable and work in a number of circumstances with the right class. .disabled for unclickable links and .active for current page.

Flexible alignment

Add either of two optional classes to change the alignment of pagination links: .pagination-centered and .pagination-right.

Examples

The default pagination component is flexible and works in a number of variations.

Markup

Wrapped in a <div>, pagination is just a <ul>.

<div class="pagination">
  <ul>
    <li><a href="#">Prev</a></li>
    <li class="active">
      <a href="#">1</a>
    </li>
    <li><a href="#">2</a></li>
    <li><a href="#">3</a></li>
    <li><a href="#">4</a></li>
    <li><a href="#">Next</a></li>
  </ul>
</div>

Pager For quick previous and next links

About pager

The pager component is a set of links for simple pagination implemenations with light markup and even lighter styles. It's great for simple sites like blogs or magazines.

Default example

By default, the pager centers links.

<ul class="pager">
  <li>
    <a href="#">Previous</a>
  </li>
  <li>
    <a href="#">Next</a>
  </li>
</ul>

Aligned links

Alternatively, you can align each link to the sides:

<ul class="pager">
  <li class="previous">
    <a href="#">&larr; Older</a>
  </li>
  <li class="next">
    <a href="#">Newer &rarr;</a>
  </li>
</ul>

Default thumbnails

By default, Bootstrap's thumbnails are designed to showcase linked images with minimal required markup.

Highly customizable

With a bit of extra markup, it's possible to add any kind of HTML content like headings, paragraphs, or buttons into thumbnails.

  • Thumbnail label

    Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ultricies vehicula ut id elit.

    Action Action

  • Thumbnail label

    Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ultricies vehicula ut id elit.

    Action Action

Why use thumbnails

Thumbnails (previously .media-grid up until v1.4) are great for grids of photos or videos, image search results, retail products, portfolios, and much more. They can be links or static content.

Simple, flexible markup

Thumbnail markup is simple—a ul with any number of li elements is all that is required. It's also super flexible, allowing for any type of content with just a bit more markup to wrap your contents.

Uses grid column sizes

Lastly, the thumbnails component uses existing grid system classes—like .span2 or .span3—for control of thumbnail dimensions.

The markup

As mentioned previously, the required markup for thumbnails is light and straightforward. Here's a look at the default setup for linked images:

<ul class="thumbnails">
  <li class="span3">
    <a href="#" class="thumbnail">
      <img src="http://placehold.it/210x150" alt="">
    </a>
  </li>
  ...
</ul>

For custom HTML content in thumbnails, the markup changes slightly. To allow block level content anywhere, we swap the <a> for a <div> like so:

<ul class="thumbnails">
  <li class="span3">
    <div class="thumbnail">
      <img src="http://placehold.it/210x150" alt="">
      <h5>Thumbnail label</h5>
      <p>Thumbnail caption right here...</p>
    </div>
  </li>
  ...
</ul>

More examples

Explore all your options with the various grid classes available to you. You can also mix and match different sizes.

Lightweight defaults

Rewritten base class

With Bootstrap 2, we've simplified the base class: .alert instead of .alert-message. We've also reduced the minimum required markup—no <p> is required by default, just the outter <div>.

Single alert message

For a more durable component with less code, we've removed the differentiating look for block alerts, messages that come with more padding and typically more text. The class also has changed to .alert-block.


Goes great with javascript

Bootstrap comes with a great jQuery plugin that supports alert messages, making dismissing them quick and easy.

Get the plugin »

Example alerts

Wrap your message and an optional close icon in a div with simple class.

× Warning! Best check yo self, you’re not looking too good.
<div class="alert">
  <a class="close">×</a>
  <strong>Warning!</strong> Best check yo self, you’re not looking too good.
</div>

Easily extend the standard alert message with two optional classes: .alert-block for more padding and text controls and .alert-heading for a matching heading.

×

Warning!

Best check yo self, you’re not looking too good. Nulla vitae elit libero, a pharetra augue. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

<div class="alert alert-block">
  <a class="close">×</a>
  <h4 class="alert-heading">Warning!</h4>
  Best check yo self, you’re not...
</div>

Contextual alternatives Add optional classes to change an alert's connotation

Error or danger

× Oh snap! Change a few things up and try submitting again.
<div class="alert alert-error">
  ...
</div>

Success

× Well done! You successfully read this important alert message.
<div class="alert alert-success">
  ...
</div>

Information

× Heads up! This alert needs your attention, but it’s not super important.
<div class="alert alert-info">
  ...
</div>

Examples and markup

Basic

Default progress bar with a vertical gradient.

<div class="progress">
  <div class="bar"
       style="width: 60%;"></div>
</div>

Striped

Uses a gradient to create a striped effect.

<div class="progress info
     striped">
  <div class="bar"
       style="width: 20%;"></div>
</div>

Animated

Takes the striped example and animates it.

<div class="progress danger
     striped active">
  <div class="bar"
       style="width: 40%;"></div>
</div>

Options and browser support

Additional colors

Progress bars utilize some of the same classes as buttons and alert messages for quick styling.

  • .info
  • .success
  • .danger

Alternatively, you can customize the LESS files and roll your own colors and sizes.

Behavior

Progress bars use CSS3 transitions, so if you dynamically adjust the width via javascript, it will smoothly resize.

If you use the .active class, your .striped progress bars will animate the stripes left to right.

Browser support

Progress bars use CSS3 gradients, transitions, and animations to achieve all their effects. These features are not supported in IE7-8 or older versions of Firefox.

Opera does not support animations at this time.