root-element-with-opacity-filter-001.html

<!DOCTYPE html>
<title>Opacity Filter: root element opacity filter</title>
<link rel="help" href="https://drafts.fxtf.org/filter-effects/#FilterProperty">
<link rel="help" href="https://drafts.fxtf.org/filter-effects/#funcdef-filter-opacity">
<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=349587">
<link rel="match" href="reference/root-element-with-opacity-filter-001-ref.html">
<meta name="assert" content="This test ensures that the root renderer has an opacity filter"/>
<html style="filter: opacity(0.501)">
This test ensures we properly paint the root element when an opacity filter is applied.

chromium/third_party/blink/web_tests/external/wpt/css/filter-effects/root-element-with-opacity-filter-001.html