--- backend_svg.py.orig	2014-10-08 13:28:41.569202660 -0700
+++ backend_svg.py	2014-10-08 13:29:34.578373257 -0700
@@ -277,7 +277,7 @@ class RendererSVG(RendererBase):
         svgwriter.write(svgProlog)
         self._start_id = self.writer.start(
             u'svg',
-            width=u'%ipt' % width, height='%ipt' % height,
+            width=u'100%', height='100%',
             viewBox=u'0 0 %i %i' % (width, height),
             xmlns=u"http://www.w3.org/2000/svg",
             version=u"1.1",