designer

designer.html

<link rel="import" href="../custom-element/my-element-with-d3-chart.html">

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

  <template>
    <style>    
      :host {
        position: absolute;
        width: 100%;
        height: 100%;
        box-sizing: border-box;
      }
      #core_menu core-item.core-selected {
        background: rgb(204, 204, 204);
      }
      core-drawer-panel[narrow] #core_icon_button {
        display: inline-block;
      }
      #my_element_with_d3_chart {
        left: 260px;
        top: 200px;
        position: absolute;
      }
    </style>
    <my-element-with-d3-chart id="my_element_with_d3_chart" data="[100,20,30,48,59]"></my-element-with-d3-chart>
  </template>

  <script>

    Polymer('my-element', {
      item: [object HTMLElement]
    });

  </script>

</polymer-element>