effect-reference-on-transparent-element.html

<!DOCTYPE html>
<html>
<title>CSS Filters: SVG filter on transparent element</title>
<link rel="author" title="Stephen White" href="mailto:[email protected]">
<link rel="help" href="https://drafts.fxtf.org/filter-effects-1/#FilterProperty">
<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=510541">
<link rel="match" href="reference/effect-reference-on-transparent-element-ref.html">
<meta name="assert" content="Check that applying a SVG filter to a transparent element works as expected. You should see a green lime colored square."/>

<style>
.box {
  width: 100px;
  height: 100px;
  filter: url(#flood_green);
}
</style>

<body>
<div class="box"></div>
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="0" height="0">
  <defs>
    <filter id="flood_green" x="0%" y="0%" width="100%" height="100%" color-interpolation-filters="sRGB">
      <feColorMatrix type="matrix" values="0 0 0 0 0
                                           0 0 0 0 1
                                           0 0 0 0 0
                                           0 0 0 0 1"/>
    </filter>
  </defs>
</svg>
</body>
</html>

chromium/third_party/blink/web_tests/external/wpt/css/filter-effects/effect-reference-on-transparent-element.html