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<html>
 <head>
  <title>Bug 670226</title>
  <style type="text/css">
   pre:first-letter { float:left; color: lime}
   pre { font-size: 16pt }
  </style>
 </head>
 <body>
  <pre dir="rtl">a+b
c</pre>
 </body>
</html>