<?xml version=“1.0” standalone=“no”?> <!DOCTYPE svg PUBLIC “-//W3C//DTD SVG April 1999//EN”

"http://www.w3.org/Graphics/SVG/svg-19990412.dtd">

<svg width=“4in” height=“3in”>

<desc>This SVG drawing embeds another one,
  thus establishing a new viewport
</desc>
<!-- The following statement establishing a new viewport
     and renders SVG drawing B into that viewport -->
<svg style="left: 25%; top: 25%" width="50%" height="50%">
   <!-- drawing B goes here -->
</svg>

</svg>