<!doctype html>
<html>
  <head>
    <title>mpadded dynamic</title>
    <meta charset="utf-8"/>
  </head>
  <body>
    <math>
      <mpadded id="mpadded" mathbackground="blue"
               width="80px" depth="50px" height="30px"
               lspace="60px" voffset="20px">
        <mspace width="10px" height="5px" depth="5px" mathbackground="red"/>
      </mpadded>
    </math>
  </body>
</html>
