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  <!DOCTYPE html>
  <html>
    <head>
      <!--Import materialize.css-->
      <link type="text/css" rel="stylesheet" href="css/materialize.min.css"  media="screen,projection"/>

      <!--Let browser know website is optimized for mobile-->
      <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no"/>
    </head>

    <body>
<nav>
     <ul id="slide-out" class="side-nav">
    <li><a href="#!">First Sidebar Link</a></li>
    <li><a href="#!">Second Sidebar Link</a></li>
    <li>
      <ul class="collapsible collapsible-accordion">
        <li>
          <a class="collapsible-header">Dropdown<i class="mdi-navigation-arrow-drop-down"></i></a>
          <div class="collapsible-body">
            <ul>
              <li><a href="#!">First</a></li>
              <li><a href="#!">Second</a></li>
              <li><a href="#!">Third</a></li>
              <li><a href="#!">Fourth</a></li>
            </ul>
          </div>
        </li>
      </ul>
    </li>
  </ul>
  <ul class="right hide-on-med-and-down">
    <li><a href="#!">First Sidebar Link</a></li>
    <li><a href="#!">Second Sidebar Link</a></li>
    <li><a class="dropdown-button" href="#!" data-activates="dropdown1">Dropdown<i class="mdi-navigation-arrow-drop-down right"></i></a></li>
    <ul id='dropdown1' class='dropdown-content'>
      <li><a href="#!">First</a></li>
      <li><a href="#!">Second</a></li>
      <li><a href="#!">Third</a></li>
      <li><a href="#!">Fourth</a></li>
    </ul>
  </ul>
  <a href="#" data-activates="slide-out" class="button-collapse"><i class="mdi-navigation-menu"></i></a>
  </nav>

      <!--Import jQuery before materialize.js-->
      <script type="text/javascript" src="https://code.jquery.com/jquery-2.1.1.min.js"></script>
      <script type="text/javascript" src="js/materialize.min.js"></script>
    </body>
  </html>