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              <nav class="navbar navbar-expand-md navbar-dark bg-dark fixed-top">
  <a class="navbar-brand" href="#">Navbar</a>
  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarsExampleDefault" aria-controls="navbarsExampleDefault" aria-expanded="false" aria-label="Toggle navigation">
        <span class="navbar-toggler-icon"></span>
      </button>

  <div class="collapse navbar-collapse" id="navbarsExampleDefault">
    <ul class="navbar-nav mr-auto">
      <li class="nav-item active">
        <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></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>
      <li class="nav-item dropdown">
        <a class="nav-link dropdown-toggle" href="http://example.com" id="dropdown01" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Dropdown</a>
        <div class="dropdown-menu" aria-labelledby="dropdown01">
          <a class="dropdown-item" href="#">Action</a>
          <a class="dropdown-item" href="#">Another action</a>
          <a class="dropdown-item" href="#">Something else here</a>
        </div>
      </li>
    </ul>
    <form class="form-inline my-2 my-lg-0">
      <input class="form-control mr-sm-2" type="text" placeholder="Search" aria-label="Search">
      <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
    </form>
  </div>
</nav>

<main role="main" class="container">

  <div class="row">
    <div class="col-md">
      <div class="starter-template">
        <ul class="nav nav-tabs" id="myTab" role="tablist">
          <li class="nav-item">
            <a class="nav-link active" id="home-tab" data-toggle="tab" href="#home" role="tab" aria-controls="home" aria-selected="true">Home</a>
          </li>
          <li class="nav-item">
            <a class="nav-link" id="profile-tab" data-toggle="tab" href="#profile" role="tab" aria-controls="profile" aria-selected="false">Profile</a>
          </li>
          <li class="nav-item">
            <a class="nav-link" id="contact-tab" data-toggle="tab" href="#contact" role="tab" aria-controls="contact" aria-selected="false">Contact</a>
          </li>
        </ul>

        <!-- tab content starts here -->
        <div class="tab-content" id="myTabContent">

          <!-- content 1 -->
          <div class="tab-pane masonry-container fade show active" id="home" role="tabpanel" aria-labelledby="home-tab">
            <h3>Tab 1 Content</h3>
            <div class="card-columns">
              <div class="card">
                <img class="card-img-top" src="https://images.unsplash.com/photo-1490261739438-981517eafb2e?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&ixid=eyJhcHBfaWQiOjE0NTg5fQ%3D%3D&s=ab1a1d09d3cdcd618d51691e27adc66e" alt="Card image cap">
                <div class="card-body">
                  <h5 class="card-title">Card title</h5>
                  <p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
                  <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
                </div>
              </div>
              <div class="card">
                <img class="card-img-top" src="https://images.unsplash.com/photo-1513569536235-bf46baacc948?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&ixid=eyJhcHBfaWQiOjE0NTg5fQ%3D%3D&s=9087de94911f2bff7c66b37b476d9a71" alt="Card image cap">
                <div class="card-body">
                  <h5 class="card-title">Card title</h5>
                  <p class="card-text">This card has supporting text below as a natural lead-in to additional content.</p>
                  <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
                </div>
              </div>
              <div class="card">
                <img class="card-img-top" src="https://images.unsplash.com/photo-1512281921271-a5004a8e8e2b?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&ixid=eyJhcHBfaWQiOjE0NTg5fQ%3D%3D&s=c9d71484dab165e928166d3975600e7f" alt="Card image cap">
                <div class="card-body">
                  <h5 class="card-title">Card title</h5>
                  <p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This card has even longer content than the first to show that equal height action.</p>
                  <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
                </div>
              </div>
            </div>
          </div>

          <!-- content 2 -->
          <div class="tab-pane fade masonry-container" id="profile" role="tabpanel" aria-labelledby="profile-tab">
            <h3>Tab 2 Content</h3>
            <div class="card-group">
              <div class="card">
                <img class="card-img-top" src="https://images.unsplash.com/photo-1501743029101-21a00d6a3fb9?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&ixid=eyJhcHBfaWQiOjE0NTg5fQ%3D%3D&s=04fc74cb01d267c20b706d27c2c493e5" alt="Card image cap">
                <div class="card-body">
                  <h5 class="card-title">Card title</h5>
                  <p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
                  <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
                </div>
              </div>
              <div class="card">
                <img class="card-img-top" src="https://images.unsplash.com/photo-1488740304459-45c4277e7daf?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&ixid=eyJhcHBfaWQiOjE0NTg5fQ%3D%3D&s=49bcc37a7a6a0de2eb984e74d19f472d" alt="Card image cap">
                <div class="card-body">
                  <h5 class="card-title">Card title</h5>
                  <p class="card-text">This card has supporting text below as a natural lead-in to additional content.</p>
                  <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
                </div>
              </div>
              <div class="card">
                <img class="card-img-top" src="https://images.unsplash.com/photo-1482066490729-6f26115b60dc?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&ixid=eyJhcHBfaWQiOjE0NTg5fQ%3D%3D&s=3f77fa1436c24f2227c3b69ba66cd088" alt="Card image cap">
                <div class="card-body">
                  <h5 class="card-title">Card title</h5>
                  <p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This card has even longer content than the first to show that equal height action.</p>
                  <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
                </div>
              </div>
            </div>
          </div>

          <!-- content 3 -->
          <div class="tab-pane fade masonry-container" id="contact" role="tabpanel" aria-labelledby="contact-tab">
            <h3>Tab 3 Content</h3>
            <div class="card-group">
              <div class="card">
                <img class="card-img-top" src="https://images.unsplash.com/photo-1433162653888-a571db5ccccf?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&ixid=eyJhcHBfaWQiOjE0NTg5fQ%3D%3D&s=459d195af49a3331fd7815ce743fd4c8" alt="Card image cap">
                <div class="card-body">
                  <h5 class="card-title">Card title</h5>
                  <p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
                  <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
                </div>
              </div>
              <div class="card">
                <img class="card-img-top" src="https://images.unsplash.com/photo-1494947665470-20322015e3a8?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&ixid=eyJhcHBfaWQiOjE0NTg5fQ%3D%3D&s=e0a403101d9ddf75a0ff3fffdaac3e77" alt="Card image cap">
                <div class="card-body">
                  <h5 class="card-title">Card title</h5>
                  <p class="card-text">This card has supporting text below as a natural lead-in to additional content.</p>
                  <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
                </div>
              </div>
              <div class="card">
                <img class="card-img-top" src="https://images.unsplash.com/photo-1507682520764-93440a60e9b5?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&ixid=eyJhcHBfaWQiOjE0NTg5fQ%3D%3D&s=11800f8d2bc199aa310594f9ea4406eb" alt="Card image cap">
                <div class="card-body">
                  <h5 class="card-title">Card title</h5>
                  <p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This card has even longer content than the first to show that equal height action.</p>
                  <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
                </div>
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>
  </div>

</main>
<!-- /.container -->
            
          
!
            
              body {
  padding-top: 50px;
}

.starter-template {
  padding: 40px 15px;
}

.card {
  width: 300px !important; 
}
            
          
!
            
              //Initialize Masonry inside Bootstrap 3 Tab component 

(function( $ ) {

	var $container = $('.masonry-container');
	$container.imagesLoaded( function () {
		$container.masonry({
			columnWidth: '.card',
			itemSelector: '.card'
		});
	});
	
	//Reinitialize masonry inside each panel after the relative tab link is clicked - 
	$('a[data-toggle=tab]').each(function () {
		var $this = $(this);

		$this.on('shown.bs.tab', function () {
		
			$container.imagesLoaded( function () {
				$container.masonry({
					columnWidth: '.card',
					itemSelector: '.card'
				});
			});

		}); //end shown
	});  //end each
	
})(jQuery);
            
          
!
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