Actividad 12 página 107

He elegido youtube para ver sus etiquetas 

<meta property="fb:app_id" content="87741124305">
      <meta property="og:url" content="http://www.youtube.com/watch?v=MBB_QFRx2IU">

      <meta property="og:title" content="Prodigy - The Life">
      <meta property="og:description" 

 content="Music video by Prodigy performing The Life.">
      <meta property="og:type" content="video">
      <meta property="og:image" 

 content="http://i2.ytimg.com/vi/MBB_QFRx2IU/hqdefault.jpg">
        <meta property="og:video" 

 content="http://www.youtube.com/v/MBB_QFRx2IU?version=3&autohide=1">
      <meta property="og:video:type" content="application/x-shockwave-flash">
      <meta property="og:video:width" content="398">
      <meta property="og:video:height" content="224">
      <meta property="og:site_name" content="YouTube">