<!DOCTYPE html>
<html>
  <head>
    <title>Test mpadded</title>
  </head>
  <body>
    <math>
      <mpadded mathbackground="green" width="200px" height="100px" depth="100px"
	       lspace="40px" voffset="20px">
	<mpadded mathbackground="blue" width="100px" height="50px" depth="50px"
		 lspace="-25px" voffset="15px">
          <mpadded mathbackground="red" width="20px" height="10px"
                   depth="10px">
          </mpadded>
	</mpadded>
      </mpadded>
    </math>
  </body>
</html>