     :host {
        display: inline-block;
      }
  
      polyfill-next-selector { content: ':host > *'; }
      ::content > * {
        padding: 12px;
      }
    
    </style>
  
    <shadow></shadow>
    
  </template>
  
  <script>
  
    Polymer('paper-radio-group', {
      
      selectedAttribute: 'checked',
      activateEvent: 'change'
      
    });
  
  </script>
  
</polymer-element>
