mix-blend-mode-background-size.html

<!DOCTYPE HTML>
<html style="background: olive;">
<head>
<style>
    div {
        width: 60px;
        height: 60px;
    }
</style>
<body style="background: olive; position: relative; z-index: 0;">
    <div style="background: red; mix-blend-mode: multiply"></div>
</body>
</html>

chromium/third_party/blink/web_tests/css3/blending/mix-blend-mode-background-size.html