A graphical example

 <?xml version="1.0"?>
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 12 August 1999//EN"
 "http://www.w3.org/Graphics/SVG/svg-19990812.dtd">
 <svg width="4in" height="3in">
   <desc>A small group of simple shapes</desc>
   <style type="text/css"><![CDATA[
     g { fill: #6F9; stroke-width: 10px; font-size: 80 }
     g > rect {stroke: green; fill: #600 }
    ]]></style>
   <g transform="rotate(45)">
     <circle cx="370" r="170"/>
     <rect x="120" y="-80" width="500" height="120"/>
     <text x="150" y="10">Hello World</text>
   </g>
 </svg>