title: css background is not working when convert template into pdf using rendering plugin
body: <p>I am using rendering plugin to generate pdf in grails.
  I am using a background color which is prepared by css. code is here.</p>
  
  <pre><code>#container #content #mainContent .block .backgroundStyle {
  
      background: #ffffff; /* Old browsers */
      /* IE9 SVG, needs conditional override of 'filter' to 'none' */
      background: url(data:image/svg+xml;base64,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);
      background: -moz-linear-gradient(left, #ffffff 0%, #ffffff 10%, #f49cd7 46%, #ffffff 100%); /* FF3.6+ */
      background: -webkit-gradient(linear, left top, right top, color-stop(0%, #ffffff), color-stop(10%, #ffffff), color-stop(46%, #f49cd7), color-stop(100%, #ffffff)); /* Chrome,Safari4+ */
      background: -webkit-linear-gradient(left, #ffffff 0%, #ffffff 10%, #f49cd7 46%, #ffffff 100%); /* Chrome10+,Safari5.1+ */
      background: -o-linear-gradient(left, #ffffff 0%, #ffffff 10%, #f49cd7 46%, #ffffff 100%); /* Opera 11.10+ */
      background: -ms-linear-gradient(left, #ffffff 0%, #ffffff 10%, #f49cd7 46%, #ffffff 100%); /* IE10+ */
      background: linear-gradient(to right, #ffffff 0%, #ffffff 10%, #f49cd7 46%, #ffffff 100%); /* W3C */
      filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffffff', endColorstr='#ffffff', GradientType=1); /* IE6-8 */
  }
  </code></pre>
  
  <p>it is in style tag. its working fine when I see it at browser but when I am generating pdf color is not render. where am I wrong.</p>