css/compositing/root-element-filter.html

<!doctype HTML>
<title>A filter on the root element applies to its background</title>
<link rel="author" title="Chris Harrelson" href="mailto:chrishtr@chromium.org">
<link rel="help" href="https://drafts.fxtf.org/compositing/#pagebackdrop">
<link rel="match" href="root-element-filter-ref.html">
<html style="filter: invert(1); background: #000">
  <div style="width: 50px; height: 50px; background: #E33"></div>
  <div id=spacer style="width: 100px; height: 3000px"></div>
</html>