Bootstrap Panel Table

Overview

Frequently we should split up a few small (or not so much) pieces of information in order to help them stand up and get the visitor's attention-- like noting certain handy features offering a listing of articles along with a brief abstract and a single effective image and so on and on.

So we want a beneficial tool to beautifully wrap our information in a attractive and responsive approach to have it nice and tidy presented on our pages. In the recent version of the most well-known responsive framework-- Bootstrap 3 we used mainly the Bootstrap Panel Border, thumbnail and well elements delivering us box containers having a subtle border, slightly elliptical corners and eventually-- a light 3d effect. In the latest Bootstrap 4 framework, these are no longer. They get got upgraded altogether by the card element claiming to be worthy of virtually everything the ancestors could possibly do but basically much better. So it's the right moment to get to know it more.

Strategies to implement the Bootstrap Panel Tabs:

The cards are lightly styled boxes efficient in carrying almost any HTML content in them also having a lot of predefined designing possibility for appropriately showing its content. It also additionally might have a footer and a header.

In the

.card-block

item you can have a label having the class

.card-title

which can be assigned to the

h1-- h6

elements in addition to a normal

<div>

and fo course -- come text wrapped in a paragraph with the

.card-text

class. If you choose to add some links as well-- assign them the

.card-link

class to get them suitably separated for greater user interaction.

The contextual color classes are employed to in addition design your whole card parts easily-- just add a

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

to the primary

.card

wrapper and if the background gets a bit too dark for the content to be understandable enough-- also add the

.card-inverse

class to invert the text color. You can also design only the boundary color scheme utilizing the contextual palette-- this gets done by assigning the

.card-outline- ~ the wanted shade ~

class again to the primary

.card

element.

As discussed above the

.card-block

appears to wrap the content keeping a pretty padding around it. But the moment it comes to images this might intend to avoid this and get the pic stretched the entire width of the element.

To get this appearance just place the

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

tag outside the

.card-block

so you avoid the paddings eventually including

style=" width:100%;"

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

A few words about the design-- cards will occupy the entire horizontal space available by default so it's a great idea controling it by putting them in some grid elements. This way you can get their predictable actions. ( get more information)

Some example

Cards are designed with as little markup and styles as possible, but still manage to deliver a lot of control and modification. Designed with flexbox, they deliver easy alignment and combine properly with other Bootstrap elements.

Below is a model of a simple card with blended content and a fixed width. Cards have no preset width to start, so they'll naturally occupy the entire width of its parent section. This is easily modified with various sizing options.

<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 content types

Cards support a wide range of content, featuring images, text, list groups, urls, and more. Here are illustrations of what's maintained.

Blocks

The building block of a card is the

.card-block

Use it when you need a padded area within a card.

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

Titles, message, and hyperlinks

Card titles are utilized by adding

.card-title

to a

<h*>

tag. Similarly, links are included and installed next to each other by adding

.card-link

to a

<a>

tag. Subtitles are handled by including a

.card-subtitle

to a

<h*>

tag. In case the

.card-title

and the

.card-subtitle

elements 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>

Pictures

.card-img-top

spots an image to the head of the card. With

.card-text

, text can be put on the card. Text inside

.card-text

may 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>

Selection groups

Produce 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 produce the card you wish, or else toss everything in there.Displayed right here are picture layouts, blocks, text message designs, 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 extra 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 including

.card-header

<h*>

sections.

<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% wide until something else stated. You can change this as desired with custom CSS, grid classes, grid Sass mixins, or utilities. ( click this)

Utilizing grid markup

Using the grid, wrap cards in columns and rows as required.

<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>

Making use of utilities

Use handful of available sizing utilities to rapidly set a card's size.

<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>

Information arrangement

You can promptly transform the text positioning of any card-- in its entirety or details 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

Include 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>

Pictures

Cards feature some features for working with images. Pick from adding "image caps" at possibly end of a card, overlaying pictures with card content, or just inserting the image in a card.

Illustration caps

Similar to headers and footers, cards can feature top and bottom "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>

Picture cover

Turn a picture into a card background and overlay your card's text. Basing 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 variations

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

Inverted content

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

.card-inverse.

Specify a dark

background-color

and

border-color

to go with it.

You may also use

.card-inverse

having the contextual backgrounds versions.

<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 easily altering the

background-color

and

border-color

of a card. Darker colors need 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>

Showing meaning to assistive modern technologies

Utilizing color to add meaning only offers a visual indication, that will not be conveyed to users of assistive technologies-- for example, screen readers. Make sure that information denoted by the color is either obvious from the content itself (e.g. the visible text), or is featured through alternate means, such as additional message hidden with the

.sr-only

class.

Outline cards

Looking for a colored card, but not the heavy background colors they bring? Change 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 material within cards, Bootstrap 4 involves certain choices for laying out collection of cards. For the time being, these design options are not yet responsive.

Card groups

Utilize card groups to render cards as a single, connected element with equal width and height columns. Card groups employ

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 using card groups with footers, their content should 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

Need a collection of equivalent width and height cards that aren't connected 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>

Just 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 can be organized into Masonry-like columns with just CSS by wrapping them in

.card-columns

Cards are developed with CSS

column

properties instead of flexbox for simpler positioning. Cards are ordered from top to bottom and left to right.

Carry on! Your mileage 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 also be extended as well as customized with some additional code. Shown below is an expansion of the

.card-columns

class making use of the very same CSS-- CSS columns-- to produce a collection of responsive rates for changing the number of columns.

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

Final thoughts

Basically this is the method the new to Bootstrap 4 card section becomes easily set up. As always aiming for ease and simplicity the new framework version combines the functionality of several elements into a single and effective one. Right now you need to select the components you need to be included in some cards.