title: polyfill for CSS3 'calc()' under webkit?
body: <p>Many of us have been thrilled with polyfills to make IE less of a drag. But my beef is with WebKit. What the hell, WebKit? You're so awesome at everything else; why did you have to go and not implement calc(), eh? ...but it's not a big deal if there's a polyfill. </p>
  
  <p>Is there? </p>
  
  <p>Google is uncharacteristically laconic on this point. So: 0 Hivemind, does such a thing exist?</p>