backdrop-filters-grayscale-003.html

<!DOCTYPE html>
<html>
<head>
<title>CSS Backdrop Filters: Grayscale(100%) with no background</title>
<link rel="author" title="Jay Dasika" href="mailto:[email protected]">
<link rel="help" href="https://drafts.fxtf.org/filter-effects-2/#BackdropFilterProperty">
<link rel="help" href="https://drafts.fxtf.org/filter-effects-1/#supported-filter-functions">
<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=527452">
<link rel="match" href="reference/backdrop-filters-grayscale-003-ref.html">
<meta name="assert" content="Check that backdrop-filter works with grayscale(100%) and no background."/>

<style>
div {
  width: 100px;
  height: 100px;
  position: absolute;
}

.background_object {
  left: 10px;
  top: 10px;
  background: orange;
}

.grayscale_backdrop {
  left: 60px;
  top: 60px;
  backdrop-filter: grayscale(100%);
}
</style>
</head>

<body>
  <div class="background_object"></div>
  <div class="grayscale_backdrop"></div>
</body>
</html>

chromium/third_party/blink/web_tests/external/wpt/css/filter-effects/backdrop-filters-grayscale-003.html