Pen Settings

HTML

CSS

CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URL's added here will be added as <link>s in order, and before the CSS in the editor. If you link to another Pen, it will include the CSS from that Pen. If the preprocessor matches, it will attempt to combine them before processing.

+ add another resource

JavaScript

Babel includes JSX processing.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

+ add another resource

Packages

Add Packages

Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.

Behavior

Save Automatically?

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

Format on Save

If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.

Editor Settings

Code Indentation

Want to change your Syntax Highlighting theme, Fonts and more?

Visit your global Editor Settings.

HTML

              
                <header>
      <div class="collapse bg-dark" id="navbarHeader">
        <div class="container">
          <div class="row">
            <div class="col-sm-8 col-md-7 py-4">
              <h4 class="text-white">About</h4>
              <p class="text-muted">Add some information about the album below, the author, or any other background context. Make it a few sentences long so folks can pick up some informative tidbits. Then, link them off to some social networking sites or contact information.</p>
            </div>
            <div class="col-sm-4 offset-md-1 py-4">
              <h4 class="text-white">Contact</h4>
              <ul class="list-unstyled">
                <li><a href="#" class="text-white">Follow on Twitter</a></li>
                <li><a href="#" class="text-white">Like on Facebook</a></li>
                <li><a href="#" class="text-white">Email me</a></li>
              </ul>
            </div>
          </div>
        </div>
      </div>
      <div class="navbar navbar-dark bg-dark box-shadow">
        <div class="container d-flex justify-content-between">
          <a href="#" class="navbar-brand d-flex align-items-center">
            <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="mr-2"><path d="M23 19a2 2 0 0 1-2 2H3a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h4l2-3h6l2 3h4a2 2 0 0 1 2 2z"></path><circle cx="12" cy="13" r="4"></circle></svg>
            <strong>Album</strong>
          </a>
          <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarHeader" aria-controls="navbarHeader" aria-expanded="false" aria-label="Toggle navigation">
            <span class="navbar-toggler-icon"></span>
          </button>
        </div>
      </div>
    </header>

    <main role="main">

      <section class="jumbotron text-center">
        <div class="container">
          <h1 class="jumbotron-heading">Album example</h1>
          <p class="lead text-muted">Something short and leading about the collection below—its contents, the creator, etc. Make it short and sweet, but not too short so folks don't simply skip over it entirely.</p>
          <p>
            <a href="#" class="btn btn-primary my-2">Main call to action</a>
            <a href="#" class="btn btn-secondary my-2">Secondary action</a>
          </p>
        </div>
      </section>

      <div class="album py-5 bg-light">
        <div class="container">

          <div class="row">
            <div class="col-md-4">
              <div class="card mb-4 box-shadow">
                <img class="card-img-top" data-src="holder.js/100px225?theme=thumb&bg=55595c&fg=eceeef&text=Thumbnail" alt="Card image cap">
                <div class="card-body">
                  <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 class="d-flex justify-content-between align-items-center">
                    <div class="btn-group">
                      <button type="button" class="btn btn-sm btn-outline-secondary">View</button>
                      <button type="button" class="btn btn-sm btn-outline-secondary">Edit</button>
                    </div>
                    <small class="text-muted">9 mins</small>
                  </div>
                </div>
              </div>
            </div>
            <div class="col-md-4">
              <div class="card mb-4 box-shadow">
                <img class="card-img-top" data-src="holder.js/100px225?theme=thumb&bg=55595c&fg=eceeef&text=Thumbnail" alt="Card image cap">
                <div class="card-body">
                  <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 class="d-flex justify-content-between align-items-center">
                    <div class="btn-group">
                      <button type="button" class="btn btn-sm btn-outline-secondary">View</button>
                      <button type="button" class="btn btn-sm btn-outline-secondary">Edit</button>
                    </div>
                    <small class="text-muted">9 mins</small>
                  </div>
                </div>
              </div>
            </div>
            <div class="col-md-4">
              <div class="card mb-4 box-shadow">
                <img class="card-img-top" data-src="holder.js/100px225?theme=thumb&bg=55595c&fg=eceeef&text=Thumbnail" alt="Card image cap">
                <div class="card-body">
                  <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 class="d-flex justify-content-between align-items-center">
                    <div class="btn-group">
                      <button type="button" class="btn btn-sm btn-outline-secondary">View</button>
                      <button type="button" class="btn btn-sm btn-outline-secondary">Edit</button>
                    </div>
                    <small class="text-muted">9 mins</small>
                  </div>
                </div>
              </div>
            </div>

            <div class="col-md-4">
              <div class="card mb-4 box-shadow">
                <img class="card-img-top" data-src="holder.js/100px225?theme=thumb&bg=55595c&fg=eceeef&text=Thumbnail" alt="Card image cap">
                <div class="card-body">
                  <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 class="d-flex justify-content-between align-items-center">
                    <div class="btn-group">
                      <button type="button" class="btn btn-sm btn-outline-secondary">View</button>
                      <button type="button" class="btn btn-sm btn-outline-secondary">Edit</button>
                    </div>
                    <small class="text-muted">9 mins</small>
                  </div>
                </div>
              </div>
            </div>
            <div class="col-md-4">
              <div class="card mb-4 box-shadow">
                <img class="card-img-top" data-src="holder.js/100px225?theme=thumb&bg=55595c&fg=eceeef&text=Thumbnail" alt="Card image cap">
                <div class="card-body">
                  <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 class="d-flex justify-content-between align-items-center">
                    <div class="btn-group">
                      <button type="button" class="btn btn-sm btn-outline-secondary">View</button>
                      <button type="button" class="btn btn-sm btn-outline-secondary">Edit</button>
                    </div>
                    <small class="text-muted">9 mins</small>
                  </div>
                </div>
              </div>
            </div>
            <div class="col-md-4">
              <div class="card mb-4 box-shadow">
                <img class="card-img-top" data-src="holder.js/100px225?theme=thumb&bg=55595c&fg=eceeef&text=Thumbnail" alt="Card image cap">
                <div class="card-body">
                  <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 class="d-flex justify-content-between align-items-center">
                    <div class="btn-group">
                      <button type="button" class="btn btn-sm btn-outline-secondary">View</button>
                      <button type="button" class="btn btn-sm btn-outline-secondary">Edit</button>
                    </div>
                    <small class="text-muted">9 mins</small>
                  </div>
                </div>
              </div>
            </div>

            <div class="col-md-4">
              <div class="card mb-4 box-shadow">
                <img class="card-img-top" data-src="holder.js/100px225?theme=thumb&bg=55595c&fg=eceeef&text=Thumbnail" alt="Card image cap">
                <div class="card-body">
                  <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 class="d-flex justify-content-between align-items-center">
                    <div class="btn-group">
                      <button type="button" class="btn btn-sm btn-outline-secondary">View</button>
                      <button type="button" class="btn btn-sm btn-outline-secondary">Edit</button>
                    </div>
                    <small class="text-muted">9 mins</small>
                  </div>
                </div>
              </div>
            </div>
            <div class="col-md-4">
              <div class="card mb-4 box-shadow">
                <img class="card-img-top" data-src="holder.js/100px225?theme=thumb&bg=55595c&fg=eceeef&text=Thumbnail" alt="Card image cap">
                <div class="card-body">
                  <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 class="d-flex justify-content-between align-items-center">
                    <div class="btn-group">
                      <button type="button" class="btn btn-sm btn-outline-secondary">View</button>
                      <button type="button" class="btn btn-sm btn-outline-secondary">Edit</button>
                    </div>
                    <small class="text-muted">9 mins</small>
                  </div>
                </div>
              </div>
            </div>
            <div class="col-md-4">
              <div class="card mb-4 box-shadow">
                <img class="card-img-top" data-src="holder.js/100px225?theme=thumb&bg=55595c&fg=eceeef&text=Thumbnail" alt="Card image cap">
                <div class="card-body">
                  <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 class="d-flex justify-content-between align-items-center">
                    <div class="btn-group">
                      <button type="button" class="btn btn-sm btn-outline-secondary">View</button>
                      <button type="button" class="btn btn-sm btn-outline-secondary">Edit</button>
                    </div>
                    <small class="text-muted">9 mins</small>
                  </div>
                </div>
              </div>
            </div>
          </div>
        </div>
      </div>

    </main>

    <footer class="text-muted">
      <div class="container">
        <p class="float-right">
          <a href="#">Back to top</a>
        </p>
        <p>Album example is &copy; Bootstrap, but please download and customize it for yourself!</p>
        <p>New to Bootstrap? <a href="../../">Visit the homepage</a> or read our <a href="../../getting-started/">getting started guide</a>.</p>
      </div>
    </footer>
              
            
!

CSS

              
                :root {
  --jumbotron-padding-y: 3rem;
}

.jumbotron {
  padding-top: var(--jumbotron-padding-y);
  padding-bottom: var(--jumbotron-padding-y);
  margin-bottom: 0;
  background-color: #fff;
}
@media (min-width: 768px) {
  .jumbotron {
    padding-top: calc(var(--jumbotron-padding-y) * 2);
    padding-bottom: calc(var(--jumbotron-padding-y) * 2);
  }
}

.jumbotron p:last-child {
  margin-bottom: 0;
}

.jumbotron-heading {
  font-weight: 300;
}

.jumbotron .container {
  max-width: 40rem;
}

footer {
  padding-top: 3rem;
  padding-bottom: 3rem;
}

footer p {
  margin-bottom: .25rem;
}

.box-shadow { box-shadow: 0 .25rem .75rem rgba(0, 0, 0, .05); }
              
            
!

JS

              
                
              
            
!
999px

Console