Bootstrap Panel Default

Introduction

Very often we need to split up several little (or not so much) components of information in order to help them stand up and get the client's interest-- like listing several handy features presenting a selection of short articles along with a small abstract and a single effective image and so on and on.

Thus we require a beneficial resource to perfectly cover our information in a lovely and responsive way to have it nice and tidy presented on our pages. In the latest version of the most popular responsive framework-- Bootstrap 3 we employed mostly the Bootstrap Panel Border, thumbnail and well elements delivering us box containers along with a slight border, slightly elliptical corners and finally-- a slight 3d outcome. In the latest Bootstrap 4 framework, these are no more. They get got replaced altogether by the card piece declaring to be capable of pretty much whatever the ancestors can do but simply better. So it's to get to know it better.

Strategies to implement the Bootstrap Panel Border:

The cards are lightly styled boxes efficient in holding practically any HTML content inside as well featuring a lot of predefined styling possibility for properly showcasing its article. It in addition additionally could have a header and a footer.

To create a card we initially require a

.card

section to cover the complete thing up. Inside it separate covers for the header

.card-header

, the genuine card content

.card-block

and the footer

.card-footer

shall take place and while the header and footer are somewhat optional and may be left out if you don't require them the

.card-block

is the vital component-- it suitably wraps your content supplying some subtle padding near.

As mentioned before the

.card-block

arrives to wrap the content keeping a pretty padding around it. When it gets to pics this could want to avoid this and get the image stretched the whole width of the component.

To receive this appearance just put the

<div class="img"><img></div>

tag outside the

.card-block

so you prevent the paddings eventually adding

style=" width:100%;"

making certain it will resize correctly always filling in its container.

Here are some pretty helpful positioning classes as well such as

.card-img-top

and

.card-img-bottom

aligning the image at the top or the bottom of the card. And if you need to place it somewhere in between the text just break the

.card-block

, insert the image and start a new

.card-block

to put the information you want placed right after the image-- multiple card blocks are supported. Eventually you may also want to include some words over the pic-- cover it inside a

<div>

holding the

.img-overlay

class.

A few words about the design-- cards will occupy the entire horizontal space available by default thus it's a good idea controling it by putting them inside some grid elements. This way you can get their predictable actions. ( additional info)

Some good example

Cards are built with as little markup and styles as possible, but still operate to offer a lot of regulation and modification. Constructed using flexbox, they offer easy positioning and mix well with other Bootstrap parts.

Below is an illustration of a fundamental card with blended content and a fixed width. Cards have no certain width to start, so they'll naturally occupy the entire width of its parent element. This is quickly customized with numerous sizing possibilities.

<div class="card" style="width: 20rem;">
  <div class="img"><img class="card-img-top" src="..." alt="Card picture caption"></div>
  <div class="card-block">
    <h4 class="card-title">Card caption</h4>
    <p class="card-text">Some fast sample message to build on the card title as well as compose the bulk of the card's material.</p>
    <a href="#" class="btn btn-primary">Go somewhere</a>
  </div>
</div>

Web information types

Cards maintain a broad selection of content, involving images, text message, list groups, urls, and more. Below are samples of what's supported.

Blocks

The building block of a card is the

.card-block

Use it whenever you demand a padded section in a card.

<div class="card">
  <div class="card-block">
    This is some message in a card block.
  </div>
</div>

Names, text message, and urls

Names, text, and {links| web links| hyperlinks| urls

<div class="card">
  <div class="card-block">
    <h4 class="card-title">Card title</h4>
    <h6 class="card-subtitle mb-2 text-muted">Card subtitle</h6>
    <p class="card-text">Some fast example message to improve the card title and compose the mass of the card's content.</p>
    <a href="#" class="card-link">Card link</a>
    <a href="#" class="card-link">Another link</a>
  </div>
</div>

Illustrations

.card-img-top

places an image to the head of the card. With

.card-text

, text can be included in the card. Text inside

.card-text

can also be styled with the regular HTML tags.

<div class="card">
  <div class="img"><img class="card-img-top" src="..." alt="Card picture cap"></div>
  <div class="card-block">
    <p class="card-text">Some fast example message to build on the card title and also compose the bulk of the card's web content.</p>
  </div>
</div>

Listing groups

Generate lists of content in a card using a flush list group.

<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>

Mix and fit different material types to generate the card you desire, or toss everything in there. Revealed right here are picture styles, blocks, notification looks, plus a list group - all covered in a fixed-width card.

<div class="card" style="width: 20rem;">
  <div class="img"><img class="card-img-top" src="..." alt="Card image cap"></div>
  <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>

Header and footer

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

<div class="card">
  <div class="card-header">
    Featured
  </div>
  <div class="card-block">
    <h4 class="card-title">Unique title therapy</h4>
    <p class="card-text">With supporting message below as an all-natural lead-in to extra content.</p>
    <a href="#" class="btn btn-primary">Go someplace</a>
  </div>
</div>

Card headers can be styled by adding

.card-header

<h*>

elements.

<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 message below as a natural lead-in to extra content.</p>
    <a href="#" class="btn btn-primary">Go someplace</a>
  </div>
</div>

<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>

<div class="card text-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 an all-natural lead-in to extra material.</p>
    <a href="#" class="btn btn-primary">Go someplace</a>
  </div>
  <div class="card-footer text-muted">
    2 days ago
  </div>
</div>

Sizing

Cards have no specified

width

to begin, so they should be 100% large except something else claimed. You can change this as required with customized CSS, grid classes, grid Sass mixins, or utilities. ( get more info)

Utilizing grid markup

Making use of the grid, wrap cards in columns and rows as desired.

<div class="row">
  <div class="col-sm-6">
    <div class="card">
      <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>
  </div>
  <div class="col-sm-6">
    <div class="card">
      <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>
  </div>
</div>

Working with utilities

Use handful of available sizing utilities to rapidly establish a card's width.

<div class="card w-75">
  <div class="card-block">
    <h3 class="card-title">Card title</h3>
    <p class="card-text">With supporting text below as a natural lead-in to additional content.</p>
    <a href="#" class="btn btn-primary">Button</a>
  </div>
</div>

<div class="card w-50">
  <div class="card-block">
    <h3 class="card-title">Card title</h3>
    <p class="card-text">With sustaining message listed below as an all-natural lead-in to extra web content.</p>
    <a href="#" class="btn btn-primary">Button</a>
  </div>
</div>

<div class="card" style="width: 20rem;">
  <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 added material.</p>
    <a href="#" class="btn btn-primary">Go somewhere</a>
  </div>
</div>

Text message placing

You can promptly change the message alignment of any card-- in its entirety or certain components-- with text align classes.

<div class="card" style="width: 20rem;">
  <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>

<div class="card text-center" style="width: 20rem;">
  <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>

<div class="card text-right" style="width: 20rem;">
  <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>

Site navigation

Place some navigation to a card's header (or block) with Bootstrap's nav elements.

<div class="card text-center">
  <div class="card-header">
    <ul class="nav nav-tabs card-header-tabs">
      <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>

<div class="card text-center">
  <div class="card-header">
    <ul class="nav nav-pills card-header-pills">
      <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>

Images

Cards involve several options for working using pics. Select from adding "image caps" at possibly end of a card, overlaying pictures with card content, or simply inserting the image in a card.

Image caps

Similar to footers and headers, cards may involve bottom and top "image caps"-- images at the top or bottom of a card.

<div class="card mb-3">
  <div class="img"><img class="card-img-top" src="..." alt="Card image cap"></div>
  <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>
  <div class="img"><img class="card-img-bottom" src="..." alt="Card image cap"></div>
</div>

Illustration cover

Turn an illustration into a card background and overlay your card's text. Depending on the image, you may or may not need

.card-inverse

(see below).

<div class="card card-inverse">
  <div class="img"><img class="card-img" src="..." alt="Card image"></div>
  <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>

Card selections

Cards involve various options for personalizing their backgrounds, borders, and color.

Inverted message

By default, cards use dark text and expect a light background. You can alter this by toggling the color scheme of text within, in addition to that of the card's subcomponents, with

.card-inverse.

Specify a dark

background-color

and

border-color

to go with it.

You can additionally use

.card-inverse

with the contextual backgrounds variants.

<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 alternatives

Cards feature their own variant classes for quickly altering the

background-color

and

border-color

of a card. Darker colors require the use of

.card-inverse

<div class="card card-inverse card-primary mb-3 text-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 mb-3 text-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 mb-3 text-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 mb-3 text-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-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>

Revealing meaning to assistive modern technologies

Utilizing color to add meaning only supplies a visual indication, that will not be shared to users of assistive technologies-- for example, screen readers. Ensure that information denoted by the color is either obvious from the content itself (e.g. the visible text), or is involved through alternate means, like additional content hidden with the

.sr-only

class.

Outline cards

In need of a colored card, but not the heavy background colors they provide? Replace the default modifier classes with the

.card-outline-*

ones to style just the

border-color

of a card.

<div class="card card-outline-primary mb-3 text-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 mb-3 text-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 mb-3 text-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 mb-3 text-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 mb-3 text-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-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>

Card arrangement

In addition to styling the content within cards, Bootstrap offers certain options for laying out series of cards. For the time being, such format options are not yet responsive.

Card groups

Utilize card groups to make cards as a single, attached element with identical width and height columns. Card groups use

display: flex;

to accomplish their uniform sizing.

<div class="card-group">
  <div class="card">
    <div class="img"><img class="card-img-top" src="..." alt="Card image cap"></div>
    <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="img"><img class="card-img-top" src="..." alt="Card image cap"></div>
    <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">
    <div class="img"><img class="card-img-top" src="..." alt="Card image cap"></div>
    <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>

When employing card groups with footers, their content is going to automatically line up.

<div class="card-group">
  <div class="card">
    <div class="img"><img class="card-img-top" src="..." alt="Card image cap"></div>
    <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>
    </div>
    <div class="card-footer">
      <small class="text-muted">Last updated 3 mins ago</small>
    </div>
  </div>
  <div class="card">
    <div class="img"><img class="card-img-top" src="..." alt="Card image cap"></div>
    <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>
    </div>
    <div class="card-footer">
      <small class="text-muted">Last updated 3 mins ago</small>
    </div>
  </div>
  <div class="card">
    <div class="img"><img class="card-img-top" src="..." alt="Card image cap"></div>
    <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>
    </div>
    <div class="card-footer">
      <small class="text-muted">Last updated 3 mins ago</small>
    </div>
  </div>
</div>

Card decks

Required a set of equivalent width and height cards that aren't attached to one another? Use card decks.

<div class="card-deck">
  <div class="card">
    <div class="img"><img class="card-img-top" src="..." alt="Card image cap"></div>
    <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">
    <div class="img"><img class="card-img-top" src="..." alt="Card image cap"></div>
    <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">
    <div class="img"><img class="card-img-top" src="..." alt="Card image cap"></div>
    <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>

Like with card groups, card footers in decks will automatically line up.

<div class="card-deck">
  <div class="card">
    <div class="img"><img class="card-img-top" src="..." alt="Card image cap"></div>
    <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>
    </div>
    <div class="card-footer">
      <small class="text-muted">Last updated 3 mins ago</small>
    </div>
  </div>
  <div class="card">
    <div class="img"><img class="card-img-top" src="..." alt="Card image cap"></div>
    <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>
    </div>
    <div class="card-footer">
      <small class="text-muted">Last updated 3 mins ago</small>
    </div>
  </div>
  <div class="card">
    <div class="img"><img class="card-img-top" src="..." alt="Card image cap"></div>
    <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>
    </div>
    <div class="card-footer">
      <small class="text-muted">Last updated 3 mins ago</small>
    </div>
  </div>
</div>

Card columns

Cards are ordered from top to bottom and left to.

Attention! Your distance with card columns may differ. To prevent cards breaking across columns, set them to

display: inline-block

column-break-inside: avoid

isn't a bulletproof solution yet.

<div class="card-columns">
  <div class="card">
    <div class="img"><img class="card-img-top img-fluid" src="..." alt="Card image cap"></div>
    <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 p-3">
    <blockquote class="card-block 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">
    <div class="img"><img class="card-img-top img-fluid" src="..." alt="Card image cap"></div>
    <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-inverse card-primary p-3 text-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 text-center">
    <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">
    <div class="img"><img class="card-img img-fluid" src="..." alt="Card image"></div>
  </div>
  <div class="card p-3 text-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">
    <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>

Card columns can also be extended as well as customized with some extra code. Shown listed below is an expansion of the

.card-columns

class utilizing the very same CSS-- CSS columns-- to generate a collection of responsive tiers for transforming the variety of columns.

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

Final thoughts

Actually this is the approach the new to Bootstrap 4 card element gets easily set up. As always aiming for ease and simplicity the new Bootstrap version combines the performance of a few elements into a singular and powerful one. Right now you need to pick up the components you need to be included in some cards.