designer

designer.html

<link rel="import" href="../custom-element/my-element-with-ajax.html">

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

  <template>
    <style>    
      :host {
        position: absolute;
        width: 100%;
        height: 100%;
        box-sizing: border-box;
      }
      #my_element_with_ajax {
        left: 330px;
        top: 120px;
        position: absolute;
      }
    </style>
    <my-element-with-ajax id="my_element_with_ajax"></my-element-with-ajax>
  </template>

  <script>

    Polymer('my-element', {
      
    });

  </script>

</polymer-element>