title: Scale SVG to container without mask/crop
body: <p>I have tried many variants of the <code>svg</code> parameters, but have had no joy in scaling this particular SVG.</p>
  
  <p>I am trying to contain <a href="http://en.wikipedia.org/wiki/File:Blank_US_Map.svg" rel="noreferrer">this SVG</a> into a container element that controls the size of the SVG.</p>
  
  <p>I'm aiming for 500x309px.</p>
  
  <p>What combination of <code>width</code>, <code>height</code>, <code>viewBox</code> and <code>preserveAspectRatio</code> can help me achieve this without having the SVG masked or cropped?</p>