designer

designer.html

<link rel="import" href="../core-input/core-input.html">

<polymer-element name="my-element" extends="core-input">

  <template>
    <style>    
      :host {
        position: absolute;
        width: 100%;
        height: 100%;
        box-sizing: border-box;
      }
      #core_input {
        padding: 15px;
        left: 70px;
        top: 110px;
        position: absolute;
      }
    </style>
    <core-input willvalidate placeholder="Type something..." id="core_input"></core-input>
  </template>

  <script>

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

  </script>

</polymer-element>