designer

designer.html

<link href="../ace-element/ace-element.html" rel="import">

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

  <template>
    <style>    
      #design_host {
        position: absolute;
        width: 100%;
        height: 100%;
        box-sizing: border-box;
      }
      #ace_element {
        width: 100%;
        height: 100%;
        left: 0px;
        top: 0px;
        position: absolute;
      }
    </style>
    <ace-element id="ace_element">function test() {
  var x = true;
}</ace-element>
  </template>

  <script>

    Polymer({
      
    });

  </script>

</polymer-element>