chromium/third_party/blink/web_tests/external/wpt/css/filter-effects/filtered-html-is-not-container.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Filter: Filtered html element does not establish a containing block.</title>
<link rel="author" title="Vladimir Levin" href="mailto:[email protected]">
<link rel="help" href="https://drafts.fxtf.org/filter-effects-1/#FilterProperty">
<link rel="match" href="filtered-html-is-not-container-ref.html">

<style>
html {
  filter: blur(0px);
}
#spacer {
  width: 2000px;
  height: 2000px;
  background-color: lightgreen;
}
#fixed, #absolute {
  width: 100px;
  height: 100px;
}
#fixed {
  position: fixed;
  top: 100px;
  left: 150px;
  background-color: green;
}
#absolute {
  position: absolute;
  top: 200px;
  left: 300px;
  background-color: blue;
}
</style>

<div id="fixed"></div>
<div id="absolute"></div>
<div id="spacer"></div>

<script>
window.onload = function() { window.scrollTo(50, 100); };
</script>