<smil xmlns="http://www.w3.org/2005/SMIL21/Language">
  <head>
    <layout>
      <root-layout backgroundColor="#eeffcc" width="640" height="480"/>
      <region id="r" fit="fill"/>
    </layout>
  </head>
  <body>
    <par dur="indefinite">
      <brush region="r" dur="indefinite" id="div1" left="10" width="150" height="150" color="blue" >
        <set attributeName="height" to="300" begin="2" dur="2"/>
      </brush>
    </par>
  </body>
</smil>