chromium/third_party/blink/web_tests/external/wpt/css/compositing/mix-blend-mode/mix-blend-mode-parent-element-overflow-hidden-and-border-radius-2.html

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <title>CSS Test: blending between an element having overflow:hidden and border-radius and its child, with will-change:opacity</title>
        <link rel="author" title="Mirela Budăeș" href="mailto:[email protected]">
        <link rel="author" title="Ion Roșca" href="mailto:[email protected]">
        <link rel="author" title="Xianzhu Wang" href="mailto:[email protected]">
        <link rel="help" href="https://drafts.fxtf.org/compositing-1/#mix-blend-mode">
        <link rel="help" href="https://crbug.com/328339028">
        <meta name="assert" content="Test checks that an element having mix-blend-mode and will-change:opacity blends with the parent element having overflow:hidden and border-radius">
        <meta name="fuzzy" content="0-128;0-400">
        <link rel="match" href="reference/mix-blend-mode-parent-element-overflow-hidden-and-border-radius-ref.html">
        <style type="text/css">
            .parent {
                background: red;
                width: 140px;
                height: 140px;
                position: relative;
                z-index: 1;
                overflow: hidden;
                border-radius: 1em 5em;
            }
            .blended {
                background: yellow;
                width: 200px;
                height: 200px;
                mix-blend-mode: difference;
                will-change: opacity;
            }
        </style>
    </head>
    <body>
        <p> Test passes if you see a lime square with rounded corners.</p>
        <div class="parent">
            <div class="blended"></div>
        </div>
    </body>
</html>