Skip to main content

Components

Over a dozen reusable components built to provide buttons, dropdowns, input groups, navigation, alerts, and much more.

Cards

A card is a flexible and extensible content container. It includes options for headers and footers, a wide variety of content, contextual background colors, and powerful display options.

If you’re familiar with Bootstrap 3, cards replace our old panels, wells, and thumbnails. Similar functionality to those components is available as modifier classes for cards.

Contents

Example

Cards require a small amount of markup and classes to provide you with as much control as possible. These classes and markup are flexible though and can typically be remixed and extended with ease. For example, if your card has no flush content like images, feel free to put the .card-block class on the .card element to consolidate your markup.

Card image cap

Card title

Some quick example text to build on the card title and make up the bulk of the card's content.

Go somewhere
<div class="card">
  <img class="card-img-top" src="..." alt="Card image cap">
  <div class="card-block">
    <h4 class="card-title">Card title</h4>
    <p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
    <a href="#" class="btn btn-primary">Go somewhere</a>
  </div>
</div>

Content types

Cards support a wide variety of content, including images, text, list groups, links, and more. Mix and match multiple content types to create the card you need.

Card image cap

Card title

Some quick example text to build on the card title and make up the bulk of the card's content.

  • Cras justo odio
  • Dapibus ac facilisis in
  • Vestibulum at eros
<div class="card">
  <img class="card-img-top" src="..." alt="Card image cap">
  <div class="card-block">
    <h4 class="card-title">Card title</h4>
    <p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
  </div>
  <ul class="list-group list-group-flush">
    <li class="list-group-item">Cras justo odio</li>
    <li class="list-group-item">Dapibus ac facilisis in</li>
    <li class="list-group-item">Vestibulum at eros</li>
  </ul>
  <div class="card-block">
    <a href="#" class="card-link">Card link</a>
    <a href="#" class="card-link">Another link</a>
  </div>
</div>

Lists can be added to a card by adding a list group.

  • Cras justo odio
  • Dapibus ac facilisis in
  • Vestibulum at eros
<div class="card">
  <ul class="list-group list-group-flush">
    <li class="list-group-item">Cras justo odio</li>
    <li class="list-group-item">Dapibus ac facilisis in</li>
    <li class="list-group-item">Vestibulum at eros</li>
  </ul>
</div>

.card-img-top places an image to the top of the card. With .card-text, text can be added to the card. Text within .card-text can also be styled with the standard HTML tags.

Card image cap

Some quick example text to build on the card title and make up the bulk of the card's content.

<div class="card">
  <img class="card-img-top" src="..." alt="Card image cap">
  <div class="card-block">
    <p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
  </div>
</div>

Card titles are used by adding .card-title to a <h*> tag. In the same way, links are added and placed next to each other by adding .card-link to a <a> tag.

Card title

Some quick example text to build on the card title and make up the bulk of the card's content.

Card link Another link
<div class="card card-block">
  <h4 class="card-title">Card title</h4>
  <p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
  <a href="#" class="card-link">Card link</a>
  <a href="#" class="card-link">Another link</a>
</div>

Subtitles are used by adding a .card-subtitle to an <h*> tag. If the .card-title and the .card-subtitle items are placed in a .card-block item, the card title and subtitle are aligned nicely.

The multiple content types can be easily combined to create the card you need. See below for an example.

Card title

Support card subtitle
Card image

Some quick example text to build on the card title and make up the bulk of the card's content.

Card link Another link
<div class="card">
  <div class="card-block">
    <h4 class="card-title">Card title</h4>
    <h6 class="card-subtitle text-muted">Support card subtitle</h6>
  </div>
  <img src="..." alt="Card image">
  <div class="card-block">
    <p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
    <a href="#" class="card-link">Card link</a>
    <a href="#" class="card-link">Another link</a>
  </div>
</div>

Sizing

Constrain the width of cards via custom CSS, our predefined grid classes, or with custom styles using our grid mixins.

Using the grid:

Special title treatment

With supporting text below as a natural lead-in to additional content.

Go somewhere

Special title treatment

With supporting text below as a natural lead-in to additional content.

Go somewhere
<div class="row">
  <div class="col-sm-6">
    <div class="card card-block">
      <h3 class="card-title">Special title treatment</h3>
      <p class="card-text">With supporting text below as a natural lead-in to additional content.</p>
      <a href="#" class="btn btn-primary">Go somewhere</a>
    </div>
  </div>
  <div class="col-sm-6">
    <div class="card card-block">
      <h3 class="card-title">Special title treatment</h3>
      <p class="card-text">With supporting text below as a natural lead-in to additional content.</p>
      <a href="#" class="btn btn-primary">Go somewhere</a>
    </div>
  </div>
</div>

Using custom widths:

Special title treatment

With supporting text below as a natural lead-in to additional content.

Go somewhere
<div class="card card-block" style="width: 18rem;">
  <h3 class="card-title">Special title treatment</h3>
  <p class="card-text">With supporting text below as a natural lead-in to additional content.</p>
  <a href="#" class="btn btn-primary">Go somewhere</a>
</div>

Text alignment

You can quickly change the text alignment of any card—in its entirety or specific parts—with our text align classes.

Special title treatment

With supporting text below as a natural lead-in to additional content.

Go somewhere

Special title treatment

With supporting text below as a natural lead-in to additional content.

Go somewhere

Special title treatment

With supporting text below as a natural lead-in to additional content.

Go somewhere
<div class="card card-block">
  <h4 class="card-title">Special title treatment</h4>
  <p class="card-text">With supporting text below as a natural lead-in to additional content.</p>
  <a href="#" class="btn btn-primary">Go somewhere</a>
</div>

<div class="card card-block text-xs-center">
  <h4 class="card-title">Special title treatment</h4>
  <p class="card-text">With supporting text below as a natural lead-in to additional content.</p>
  <a href="#" class="btn btn-primary">Go somewhere</a>
</div>

<div class="card card-block text-xs-right">
  <h4 class="card-title">Special title treatment</h4>
  <p class="card-text">With supporting text below as a natural lead-in to additional content.</p>
  <a href="#" class="btn btn-primary">Go somewhere</a>
</div>

Add an optional header and/or footer within a card.

Featured

Special title treatment

With supporting text below as a natural lead-in to additional content.

Go somewhere
<div class="card">
  <div class="card-header">
    Featured
  </div>
  <div class="card-block">
    <h4 class="card-title">Special title treatment</h4>
    <p class="card-text">With supporting text below as a natural lead-in to additional content.</p>
    <a href="#" class="btn btn-primary">Go somewhere</a>
  </div>
</div>

Card headers can be styled by adding .card-header to <h*> elements.

Featured

Special title treatment

With supporting text below as a natural lead-in to additional content.

Go somewhere
<div class="card">
  <h3 class="card-header">Featured</h3>
  <div class="card-block">
    <h4 class="card-title">Special title treatment</h4>
    <p class="card-text">With supporting text below as a natural lead-in to additional content.</p>
    <a href="#" class="btn btn-primary">Go somewhere</a>
  </div>
</div>
Quote

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.

Someone famous in Source Title
<div class="card">
  <div class="card-header">
    Quote
  </div>
  <div class="card-block">
    <blockquote class="card-blockquote">
      <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
      <footer>Someone famous in <cite title="Source Title">Source Title</cite></footer>
    </blockquote>
  </div>
</div>
Featured

Special title treatment

With supporting text below as a natural lead-in to additional content.

Go somewhere
<div class="card text-xs-center">
  <div class="card-header">
    Featured
  </div>
  <div class="card-block">
    <h4 class="card-title">Special title treatment</h4>
    <p class="card-text">With supporting text below as a natural lead-in to additional content.</p>
    <a href="#" class="btn btn-primary">Go somewhere</a>
  </div>
  <div class="card-footer text-muted">
    2 days ago
  </div>
</div>

Header nav

Use Bootstrap’s nav pills or tabs within a card header. Be sure to always include a .pull-*-* utility class for proper alignment.

Special title treatment

With supporting text below as a natural lead-in to additional content.

Go somewhere
<div class="card text-xs-center">
  <div class="card-header">
    <ul class="nav nav-tabs card-header-tabs pull-xs-left">
      <li class="nav-item">
        <a class="nav-link active" href="#">Active</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Link</a>
      </li>
      <li class="nav-item">
        <a class="nav-link disabled" href="#">Disabled</a>
      </li>
    </ul>
  </div>
  <div class="card-block">
    <h4 class="card-title">Special title treatment</h4>
    <p class="card-text">With supporting text below as a natural lead-in to additional content.</p>
    <a href="#" class="btn btn-primary">Go somewhere</a>
  </div>
</div>

Special title treatment

With supporting text below as a natural lead-in to additional content.

Go somewhere
<div class="card text-xs-center">
  <div class="card-header">
    <ul class="nav nav-pills card-header-pills pull-xs-left">
      <li class="nav-item">
        <a class="nav-link active" href="#">Active</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Link</a>
      </li>
      <li class="nav-item">
        <a class="nav-link disabled" href="#">Disabled</a>
      </li>
    </ul>
  </div>
  <div class="card-block">
    <h4 class="card-title">Special title treatment</h4>
    <p class="card-text">With supporting text below as a natural lead-in to additional content.</p>
    <a href="#" class="btn btn-primary">Go somewhere</a>
  </div>
</div>

Image caps

Similar to headers and footers, cards include top and bottom image caps.

Card image cap

Card title

This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.

Last updated 3 mins ago

Card title

This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.

Last updated 3 mins ago

Card image cap
<div class="card">
  <img class="card-img-top" src="..." alt="Card image cap">
  <div class="card-block">
    <h4 class="card-title">Card title</h4>
    <p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
    <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
  </div>
</div>
<div class="card">
  <div class="card-block">
    <h4 class="card-title">Card title</h4>
    <p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
    <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
  </div>
  <img class="card-img-bottom" src="..." alt="Card image cap">
</div>

Image overlays

Turn an image into a card background and overlay your card’s text. Depending on the image, you may or may not need .card-inverse (see below).

Card image

Card title

This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.

Last updated 3 mins ago

<div class="card card-inverse">
  <img class="card-img" src="..." alt="Card image">
  <div class="card-img-overlay">
    <h4 class="card-title">Card title</h4>
    <p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
    <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
  </div>
</div>

Inverted text

Cards include a class for quickly toggling the text color. By default, cards use dark text and assume a light background. Add .card-inverse for white text and specify the background-color and border-color to go with it.

You can also use .card-inverse with the contextual backgrounds variants.

Special title treatment

With supporting text below as a natural lead-in to additional content.

Go somewhere
<div class="card card-inverse" style="background-color: #333; border-color: #333;">
  <div class="card-block">
    <h3 class="card-title">Special title treatment</h3>
    <p class="card-text">With supporting text below as a natural lead-in to additional content.</p>
    <a href="#" class="btn btn-primary">Go somewhere</a>
  </div>
</div>

Background variants

Cards include their own variant classes for quickly changing the background-color and border-color of a card. Darker colors require the use of .card-inverse.

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.

Someone famous in Source Title

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.

Someone famous in Source Title

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.

Someone famous in Source Title

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.

Someone famous in Source Title

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.

Someone famous in Source Title
<div class="card card-inverse card-primary text-xs-center">
  <div class="card-block">
    <blockquote class="card-blockquote">
      <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
      <footer>Someone famous in <cite title="Source Title">Source Title</cite></footer>
    </blockquote>
  </div>
</div>
<div class="card card-inverse card-success text-xs-center">
  <div class="card-block">
    <blockquote class="card-blockquote">
      <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
      <footer>Someone famous in <cite title="Source Title">Source Title</cite></footer>
    </blockquote>
  </div>
</div>
<div class="card card-inverse card-info text-xs-center">
  <div class="card-block">
    <blockquote class="card-blockquote">
      <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
      <footer>Someone famous in <cite title="Source Title">Source Title</cite></footer>
    </blockquote>
  </div>
</div>
<div class="card card-inverse card-warning text-xs-center">
  <div class="card-block">
    <blockquote class="card-blockquote">
      <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
      <footer>Someone famous in <cite title="Source Title">Source Title</cite></footer>
    </blockquote>
  </div>
</div>
<div class="card card-inverse card-danger text-xs-center">
  <div class="card-block">
    <blockquote class="card-blockquote">
      <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
      <footer>Someone famous in <cite title="Source Title">Source Title</cite></footer>
    </blockquote>
  </div>
</div>

Conveying meaning to assistive technologies

Using color to add meaning only provides a visual indication, which will not be conveyed to users of assistive technologies – such as screen readers. Ensure that information denoted by the color is either obvious from the content itself (e.g. the visible text), or is included through alternative means, such as additional text hidden with the .sr-only class.

Outline variants

In need of a colored card, but not the hefty background colors they bring? Replace the default modifier classes with the .card-outline-* ones to style just the border-color of a card.

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.

Someone famous in Source Title

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.

Someone famous in Source Title

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.

Someone famous in Source Title

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.

Someone famous in Source Title

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.

Someone famous in Source Title

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.

Someone famous in Source Title
<div class="card card-outline-primary text-xs-center">
  <div class="card-block">
    <blockquote class="card-blockquote">
      <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
      <footer>Someone famous in <cite title="Source Title">Source Title</cite></footer>
    </blockquote>
  </div>
</div>
<div class="card card-outline-secondary text-xs-center">
  <div class="card-block">
    <blockquote class="card-blockquote">
      <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
      <footer>Someone famous in <cite title="Source Title">Source Title</cite></footer>
    </blockquote>
  </div>
</div>
<div class="card card-outline-success text-xs-center">
  <div class="card-block">
    <blockquote class="card-blockquote">
      <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
      <footer>Someone famous in <cite title="Source Title">Source Title</cite></footer>
    </blockquote>
  </div>
</div>
<div class="card card-outline-info text-xs-center">
  <div class="card-block">
    <blockquote class="card-blockquote">
      <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
      <footer>Someone famous in <cite title="Source Title">Source Title</cite></footer>
    </blockquote>
  </div>
</div>
<div class="card card-outline-warning text-xs-center">
  <div class="card-block">
    <blockquote class="card-blockquote">
      <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
      <footer>Someone famous in <cite title="Source Title">Source Title</cite></footer>
    </blockquote>
  </div>
</div>
<div class="card card-outline-danger text-xs-center">
  <div class="card-block">
    <blockquote class="card-blockquote">
      <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
      <footer>Someone famous in <cite title="Source Title">Source Title</cite></footer>
    </blockquote>
  </div>
</div>

Groups

Use card groups to render cards as a single, attached element with equal width and height columns. By default, card groups use display: table; and table-layout: fixed; to achieve their uniform sizing. However, enabling flexbox mode can switch that to use display: flex; and provide the same effect.

Only applies to small devices and above.

Card image cap

Card title

This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.

Last updated 3 mins ago

Card image cap

Card title

This card has supporting text below as a natural lead-in to additional content.

Last updated 3 mins ago

Card image cap

Card title

This is a wider card with supporting text below as a natural lead-in to additional content. This card has even longer content than the first to show that equal height action.

Last updated 3 mins ago

<div class="card-group">
  <div class="card">
    <img class="card-img-top" src="..." alt="Card image cap">
    <div class="card-block">
      <h4 class="card-title">Card title</h4>
      <p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
      <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
    </div>
  </div>
  <div class="card">
    <img class="card-img-top" src="..." alt="Card image cap">
    <div class="card-block">
      <h4 class="card-title">Card title</h4>
      <p class="card-text">This card has supporting text below as a natural lead-in to additional content.</p>
      <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
    </div>
  </div>
  <div class="card">
    <img class="card-img-top" src="..." alt="Card image cap">
    <div class="card-block">
      <h4 class="card-title">Card title</h4>
      <p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This card has even longer content than the first to show that equal height action.</p>
      <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
    </div>
  </div>
</div>

Decks

Need a set of equal width and height cards that aren’t attached to one another? Use card decks. By default, card decks require two wrapping elements: .card-deck-wrapper and a .card-deck. We use table styles for the sizing and the gutters on .card-deck. The .card-deck-wrapper is used to negative margin out the border-spacing on the .card-deck.

Only applies to small devices and above.

ProTip! If you enable flexbox mode, you can remove the .card-deck-wrapper.

Card image cap

Card title

This is a longer card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.

Last updated 3 mins ago

Card image cap

Card title

This card has supporting text below as a natural lead-in to additional content.

Last updated 3 mins ago

Card image cap

Card title

This is a wider card with supporting text below as a natural lead-in to additional content. This card has even longer content than the first to show that equal height action.

Last updated 3 mins ago

<div class="card-deck-wrapper">
  <div class="card-deck">
    <div class="card">
      <img class="card-img-top" src="..." alt="Card image cap">
      <div class="card-block">
        <h4 class="card-title">Card title</h4>
        <p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
        <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
      </div>
    </div>
    <div class="card">
      <img class="card-img-top" src="..." alt="Card image cap">
      <div class="card-block">
        <h4 class="card-title">Card title</h4>
        <p class="card-text">This card has supporting text below as a natural lead-in to additional content.</p>
        <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
      </div>
    </div>
    <div class="card">
      <img class="card-img-top" src="..." alt="Card image cap">
      <div class="card-block">
        <h4 class="card-title">Card title</h4>
        <p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This card has even longer content than the first to show that equal height action.</p>
        <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
      </div>
    </div>
  </div>
</div>

Columns

Cards can be organized into Masonry-like columns with just CSS by wrapping them in .card-columns. Cards are ordered from top to bottom and left to right when wrapped in .card-columns.

Only applies to small devices and above.

Heads up! This is not available in IE9 and below as they have no support for the column-* CSS properties.

Card image cap

Card title that wraps to a new line

This is a longer card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.

Someone famous in Source Title
Card image cap

Card title

This card has supporting text below as a natural lead-in to additional content.

Last updated 3 mins ago

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat.

Someone famous in Source Title

Card title

This card has supporting text below as a natural lead-in to additional content.

Last updated 3 mins ago

Card image

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.

Someone famous in Source Title

Card title

This is a wider card with supporting text below as a natural lead-in to additional content. This card has even longer content than the first to show that equal height action.

Last updated 3 mins ago

<div class="card-columns">
  <div class="card">
    <img class="card-img-top" src="..." alt="Card image cap">
    <div class="card-block">
      <h4 class="card-title">Card title that wraps to a new line</h4>
      <p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
    </div>
  </div>
  <div class="card card-block">
    <blockquote class="card-blockquote">
      <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
      <footer>
        <small class="text-muted">
          Someone famous in <cite title="Source Title">Source Title</cite>
        </small>
      </footer>
    </blockquote>
  </div>
  <div class="card">
    <img class="card-img-top" src="..." alt="Card image cap">
    <div class="card-block">
      <h4 class="card-title">Card title</h4>
      <p class="card-text">This card has supporting text below as a natural lead-in to additional content.</p>
      <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
    </div>
  </div>
  <div class="card card-block card-inverse card-primary text-xs-center">
    <blockquote class="card-blockquote">
      <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat.</p>
      <footer>
        <small>
          Someone famous in <cite title="Source Title">Source Title</cite>
        </small>
      </footer>
    </blockquote>
  </div>
  <div class="card card-block text-xs-center">
    <h4 class="card-title">Card title</h4>
    <p class="card-text">This card has supporting text below as a natural lead-in to additional content.</p>
    <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
  </div>
  <div class="card">
    <img class="card-img" src="..." alt="Card image">
  </div>
  <div class="card card-block text-xs-right">
    <blockquote class="card-blockquote">
      <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
      <footer>
        <small class="text-muted">
          Someone famous in <cite title="Source Title">Source Title</cite>
        </small>
      </footer>
    </blockquote>
  </div>
  <div class="card card-block">
    <h4 class="card-title">Card title</h4>
    <p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This card has even longer content than the first to show that equal height action.</p>
    <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
  </div>
</div>

Card columns can also be extended and customized with some additional code. Shown below is an extension of the .card-columns class using the same CSS we use—CSS columns— to generate a set of responsive tiers for changing the number of columns.

.card-columns {
  @include media-breakpoint-only(lg) {
    column-count: 4;
  }
  @include media-breakpoint-only(xl) {
    column-count: 5;
  }
}