chromium/third_party/blink/web_tests/external/wpt/css/css-images/tiled-radial-gradients.html

<!doctype html>
<html>
    <head>
        <meta charset="utf-8">
        <title>Two Ellipses with Custom Placement (with gradients)</title>
        <link rel="help" href="https://drafts.csswg.org/css-backgrounds-3/#propdef-background-size">
        <meta name="assert" content="Gradients are correctly repeated.">
        <link rel="match" href="tiled-radial-gradients-ref.html">
        <meta name="fuzzy" content="maxDifference=0-2; totalPixels=0-8009">
        <style>
            body {
                margin: 0px;
            }
            #gradient {
                position: absolute;
                width: 600px;
                height: 200px;
                left: 0px;
                margin: 0px;
                background-color: aquamarine;
                background-image: radial-gradient(closest-side, red 40%, transparent 40%);
                background-size: 300px 200px;
                background-position: 80px 0px;
            }
        </style>
    </head>
    <body>
        <div id="gradient"></div>
    </body>
</html>