value="core-transition-bottom">core-transition-bottom</option>
    <option value="core-transition-left">core-transition-left</option>
    <option value="core-transition-right">core-transition-right</option>
  </select>

  <button onclick="stuff();">toggle</button>

  <script>

    document.addEventListener('polymer-ready', function() {
      // initial setup
      setup();
      document.getElementById('animate-me').removeAttribute('hidden');
    });

    var meta;
    var transition;
    var state = {
    