Bootstrap Panel Tabs

Overview

Often we should separate several small (or not so much) parts of content to make them stand up and get the customer's interest-- like noting several valuable features presenting a listing of short articles with a small abstract and a solitary powerful picture and so on and on.

Thus we want a practical tool to perfectly cover our content in a attractive and flexible way to have it nice and neat shown on our sites. In the recent version of the remarkably famous flexible framework-- Bootstrap 3 we used mostly the Bootstrap Panel Border, thumbnail and well elements providing us box containers with a slight border, quite elliptical edges and eventually-- a light 3d outcome. In the latest Bootstrap 4 framework, these are no longer. They get got substituted entirely by the card element stating to be worthy of nearly whatever the veterans could do but basically much better. So it's to get to know it better.

Approaches to utilize the Bootstrap Panel Collapse:

The cards are lightly styled boxes capable of holding practically any HTML content in them also featuring a lot of predefined styling choice for properly showing its article. It in addition additionally might have a footer and a header.

The contextual different colors classes can be employed to further design your entire card pieces easily-- just add a

.card- ~ one of the contextual colors here like primary, success, info or danger here ~

to the primary

.card

wrapper and in case the background becomes a bit overly darkened for the text to be legible enough-- also add the

.card-inverse

class to alter the text color. You can also design only the line color scheme using the contextual palette-- this gets completed by adding the

.card-outline- ~ the required color ~

class again to the main

.card

section.

As mentioned above the

.card-block

appears to cover the content keeping a notable padding around it. However the moment it comes to images this might want to prevent this and have the pic stretched the whole width of the section.

To get this look just place the

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

tag outside the

.card-block

thus you avoid the paddings eventually including

style=" width:100%;"

making certain this will resize properly always filling in its container.

There are multiple rather helpful placement 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 position it somewhere in between the text just break the

.card-block

, insert the pic and start a new

.card-block

to put the information you want placed after the pic-- multiple card blocks are supported. Eventually you can also wish to add some text over the image-- wrap it inside a

<div>

holding the

.img-overlay

class.

A few words regarding the layout-- cards will occupy the complete horizontal spot available by default so it's a great idea controling this by putting them in some grid elements. By doing this you can get their expected actions. ( read this)

Some instance

Cards are built with as minimal markup and styles as possible, but still operate to deliver a lot of regulation and customization. Constructed using flexbox, they deliver easy positioning and blend properly with other Bootstrap elements.

Here is an illustration of a fundamental card with blended content and a specified width. Cards have no predetermined width to start, so they'll naturally occupy the full width of its parent element. This is conveniently individualized with many 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 site material sorts

Cards support a wide assortment of content, featuring pics, text, list collections, hyperlinks, and more. Listed below are illustrations of what's provided.

Blocks

The building block of a card is the

.card-block

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

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

Titles, text message, and web links

Card titles are employed by adding

.card-title

to a

<h*>

tag. In the same way, urls are added and installed close to each other by adding

.card-link

to a

<a>

tag. Subtitles are utilized by adding a

.card-subtitle

to a

<h*>

tag. In case the

.card-title

and the

.card-subtitle

items are placed in a

.card-block

element, the card title and subtitle are aligned well.

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

puts an image to the top of the card. With

.card-text

, text could be put on the card. Text inside

.card-text

can also be styled with the standard 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>

Selection groups

Generate lists of content in a card with 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 numerous content types to develop the card you need, or else throw everything in there. Shown here are picture formats, blocks, information looks, and 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

Include an optional header and/or footer inside 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*>

components.

<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>

Measurements

Cards assume no specified

width

to begin, so they should be 100% large until something else declared. You may change this as required with customized CSS, grid classes, grid Sass mixins, or utilities. ( additional hints)

Applying grid markup

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

<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 readily available sizing utilities to swiftly 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>

Message setting

You can promptly change the text positioning of any kind of card-- in its totality or specific 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>

Web site navigating

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

<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>

Pictures

Cards offer some features for working with pics. Choose from appending "image caps" at either end of a card, overlaying images with card content, or simply inserting the image in a card.

Illustration caps

Just like headers and footers, cards may involve top and bottom "image caps"-- pics 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>

Image cover

Turn a pic into a card foundation and overlay your card's text. Basing on the pic, 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 varieties

Cards involve various choices for modifying their backgrounds, borders, and color.

Inverted text

Initially, cards use dark text and suppose a light background. You can change that by toggling the color of text within, in addition to that of the card's subcomponents, with

.card-inverse.

After that, 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 variants

Cards include their own variant classes for rapidly modifying the

background-color

and

border-color

of a card. Darker colors request 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>

Transmitting meaning to assistive modern technologies

Employing color to bring in meaning only provides a visual indication, which will not be conveyed to users of assistive technologies-- for example, screen readers. Make sure that info denoted by the color is either obvious from the content itself (e.g. the visible text), or is included through alternate means, including extra text hidden with the

.sr-only

class.

Outline cards

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

.card-outline-*

ones to design 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 material within cards, Bootstrap involves a few choices for laying out series of cards. For the present being, these format choices are not yet responsive.

Card groups

Use card groups to render cards as a single, attached element with equal width and height columns. Card groups use

display: flex;

to achieve 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 using card groups with footers, their content will 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 collection of equal width and height cards that typically aren't attached to each other? Utilize 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 are going to 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.

Heads up! Your distance with card columns may differ. To avoid 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 additionally be extended and customized with some additional code. Revealed below is an extension of the

.card-columns

class using the exact same CSS-- CSS columns-- to generate a set of receptive 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 item gets simply set up. As always aiming for easiness and simplicity the new framework version combines the functionality of multiple sections into a singular and effective one. Now you need to select the components you need to be outlined in some cards.