The Tor Browser / file revision

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 <svg xmlns="http://www.w3.org/2000/svg" version="1.1">

   <title>Reference for text font-weight</title>

   <!-- From https://bugzilla.mozilla.org/show_bug.cgi?id=379284 -->

   <g id="test-body-content" font-family="Georgia, 'Times New Roman', Times,  'MS Mincho', serif" font-size="30">

     <text font-weight="normal" x="10" y="50">This should be normal</text>

     <text font-weight="bold" x="10" y="100">This should be bold</text>

     <text font-weight="400" x="10" y="150">This should be normal</text>

     <text font-weight="700" x="10" y="200">This should be bold</text>

   </g>

 </svg>