Bootstrap 4 Collapse with Masonry

Attempting to get the collapse to readjust the masonry layout in the height direction.

by joshmoto

HTML

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css">
<script src="https://code.jquery.com/jquery-3.1.1.slim.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js"></script>
<script src="https://unpkg.com/masonry-layout@4/dist/masonry.pkgd.min.js"></script>
<script src="https://unpkg.com/imagesloaded@4/imagesloaded.pkgd.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js"></script>
<div class="container">
  <div class="row align-items-center">
    <div class="col-6 col-sm-6 col-md-8">
      <!-- Top Contact -->
      <div class="top-contact">
        <div class="single-contact"><i class="fas fa-phone-alt"></i>Phone: 1800 123 4567</div>
        <div class="single-contact d-none d-lg-inline-block"><i class="fa fa-envelope-open"></i><a href="mailto:[email protected]">[email protected]</a></div>
        <!-- <div class="single-contact"><i class="fa fa-clock-o"></i>Opening: 09AM - 06PM</div>  -->
      </div>
      <!-- End Top Contact -->
    </div>
    <div class="col-6 col-sm-6 col-md-4">
      <div class="topbar-right">
        <!-- Social Icons -->
        <ul class="social-icons d-none">
          <li><a href="#" target="_blank"><i class="fab fa-facebook-f"></i></a></li>
          <li><a href="#" target="_blank"><i class="fab fa-twitter"></i></a></li>
          <li><a href="#" target="_blank"><i class="fab fa-linkedin-in"></i></a></li>
        </ul>
        <div class="button">
          <a href="contact.php" class="pixcorp-btn">Get a Quote</a>
        </div>
      </div>
    </div>
  </div>
</div>