designer

designer.html

<link rel="import" href="../components/polymer/polymer.html">

<polymer-element name="my-element">

  <template>
    <style>    

    </style>    
    <button id="button" on-tap="onTap" on-click="onClick">Tap me!</button>
  </template>

  <script>

    Polymer('my-element', {
      onTap: function () {
        alert('on-tap fired')
    },
      onClick: function () {
        alert('on-click fired')
    }
    });

  </script>

</polymer-element>