designer

designer.html

<link rel="import" href="../core-icon-button/core-icon-button.html">
<link rel="import" href="../core-toolbar/core-toolbar.html">
<link rel="import" href="../core-header-panel/core-header-panel.html">
<link rel="import" href="../core-menu-button/core-menu-button.html">
<link rel="import" href="../core-icons/core-icons.html">
<link rel="import" href="../core-item/core-item.html">

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

  <template>
    <style>    
      :host {
        position: absolute;
        width: 100%;
        height: 100%;
        box-sizing: border-box;
      }
      #code_mirror {
        width: 400px;
        height: 300px;
        left: 1250px;
        top: 290px;
      }
      #core_header_panel {
        width: 1020px;
        height: 590px;
        left: 0px;
        top: 0px;
        position: absolute;
      }
      #core_toolbar {
        color: rgb(255, 255, 255);
        background-color: rgb(79, 125, 201);
      }
      #section {
        height: 1000px;
        background: linear-gradient(rgb(214, 227, 231), rgb(173, 216, 230));
      }
    </style>
    <core-header-panel mode="standard" id="core_header_panel">
      <core-toolbar id="core_toolbar" center-justified center>
        <core-icon-button icon="menu" id="core_icon_button"></core-icon-button>
        <div id="div">Header</div>
        <core-menu-button icon="more-vert" selected="0" valueattr="name" id="core_menu_button">
          <core-item label="Cut" icon="content-cut" size="24" id="core_item" horizontal center layout active></core-item>
          <core-item label="Copy" icon="content-copy" size="24" id="core_item1" horizontal center layout></core-item>
          <core-item label="Paste" icon="content-paste" size="24" id="core_item2" horizontal center layout></core-item>
        </core-menu-button>
      </core-toolbar>
      <section id="section" center-justified></section>
    </core-header-panel>
  </template>

  <script>

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

  </script>

</polymer-element>