chromium/third_party/blink/web_tests/external/wpt/css/filter-effects/filter-function/filter-function-001.html

<!DOCTYPE html>
<html>
<head>
<title>filter function can be applied to an image included as content</title>
<link rel="help" href="https://drafts.fxtf.org/filter-effects-1/#funcdef-filter"/>
<link rel="help" href="https://drafts.csswg.org/css-content/#content-property"/>
<link rel="author" title="Mike Bremford" href="http://bfo.com/" />
<link rel="match" href="../../reference/ref-filled-green-100px-square.xht"/>
<style>
div {
    width: 100px;
    height: 100px;
    background: red;
    image-rendering: crisp-edges;
    content: filter(url(resources/green-transparent-100x100.png), drop-shadow(50px 0 0 green));
}
</style>
</head>
<body>
 <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
 <div></div>
</body>
</html>