-selector" role="radiogroup">

  <template>

    <core-a11y-keys target="{{}}" keys="up left" on-keys-pressed="{{selectPrevious}}"></core-a11y-keys>
    <core-a11y-keys target="{{}}" keys="down right" on-keys-pressed="{{selectNext}}"></core-a11y-keys>
  
    <style>
    
      :host {
        display: inline-block;
      }
  
      polyfill-next-selector { content: ':host > *'; }
      ::content > * {
        padding: 12px;
      }
    
    </style>
  
    <shadow></shadow>
    
  </template>
  
  <script>
