<?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>Groups can nest </desc> <g> <g> <g> </g> </g> </g> </svg>