gecko-dev/layout/reftests/svg/opacity-and-gradient-01.svg

<!--
     Any copyright is dedicated to the Public Domain.
     http://creativecommons.org/publicdomain/zero/1.0/
-->
<svg xmlns="http://www.w3.org/2000/svg" version="1.1">

  <title>Testcase for opacity on elements referencing a gradient</title>

  <!-- From https://bugzilla.mozilla.org/show_bug.cgi?id=357163 -->

  <defs>
    <linearGradient id="lime" gradientUnits="userSpaceOnUse">
      <stop stop-color="lime"/>
    </linearGradient>
    <linearGradient id="red" gradientUnits="userSpaceOnUse">
      <stop stop-color="red"/>
    </linearGradient>
  </defs>

  <rect width="100%" height="100%" fill="red"/>

  <!-- Create the "pass" rect using a gradient so the testcase doesn't seem to
       pass if gradients are not supported -->
  <rect width="100%" height="100%" fill="url(#lime)"/>

  <!-- test 'opacity' -->
  <rect width="25%" height="100%" fill="url(#red)" opacity="0"/>

  <!-- test 'fill-opacity' -->
  <rect x="25%" width="25%" height="100%" fill="url(#red)" fill-opacity="0"/>

  <!-- test 'stroke-opacity' -->
  <line x1="75%" x2="75%" y2="100%" stroke="url(#red)" stroke-width="50%" stroke-opacity="0"/>

</svg>