designer

designer.html

<link rel="import" href="../core-icon-button/core-icon-button.html">
<link rel="import" href="../core-toolbar/core-toolbar.html">

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

  <template>
    <style>    
      :host {
        position: absolute;
        width: 100%;
        height: 100%;
        box-sizing: border-box;
      }
      #core_toolbar {
        right: 0px;
        left: -20px;
        color: rgb(255, 255, 255);
        fill: rgb(255, 255, 255);
        top: 0px;
        position: absolute;
        background-color: rgb(79, 125, 201);
      }
    </style>
    <core-toolbar id="core_toolbar">
      <core-icon-button id="core_icon_button" icon="menu"></core-icon-button>
      <div id="div" flex>Toolbar</div>
    </core-toolbar>
  </template>

  <script>

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

  </script>

</polymer-element>