scroll-marker-group-002.tentative.html

<!doctype html>
<html>

<head>
    <meta charset="utf-8">
    <title>CSS Test: ::scroll-marker-group invalidation</title>
    <link rel="author" href="mailto:[email protected]">
    <link rel="match" href="scroll-marker-group-001-ref.tentative.html">
    <link rel="help" href="https://github.com/flackr/carousel/tree/main/scroll-marker">
    <style>
        :root {
            --scroll-marker-group-background: red;
        }

        div {
            overflow: auto;
            scroll-marker-group: before;
        }

        div::scroll-marker-group {
            background: var(--scroll-marker-group-background);
            display: flex;
            height: 100px;
            width: 100px;
        }
    </style>
</head>

<body>
    <p>Test passes if there is a <strong>filled green rectangle</strong>.
    <div></div>
</body>
<script>
    document.documentElement.offsetTop;
    document.documentElement.style.setProperty('--scroll-marker-group-background', 'green');
    document.documentElement.offsetTop;
</script>

</html>

chromium/third_party/blink/web_tests/wpt_internal/css/css-overflow/scroll-marker-group-002.tentative.html