<div class="row section">
  <div class="col">
    <!-- Modal Trigger -->
    <a class="waves-effect waves-light btn modal-trigger" href="#modal1">Modal</a>
    <p>You have to include jQuery and Materialize JS + CSS for the modal to work. You can include it from <a href="http://materializecss.com/getting-started.html">CDN (getting started)</a>.
  </div>
</div>
<!-- Modal Structure -->
<div id="modal1" class="modal">
  <div class="modal-content">
    <h4>Modal Header</h4>
    <p>A bunch of text</p>
  </div>
  <div class="modal-footer">
    <a href="#!" class=" modal-action modal-close waves-effect waves-green btn-flat">Agree</a>
  </div>
</div>

  $(document).ready(function(){
    // the "href" attribute of .modal-trigger must specify the modal ID that wants to be triggered
    $('.modal-trigger').leanModal();
  });