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chromium
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chromium/third_party/blink/web_tests/fast/forms/color-scheme/scrollbar/horizontal-scrollbar-basic.html 

<!DOCTYPE html>

<head>
    <meta name="color-scheme" content="light dark">
    <meta name="fuzzy" content="0-10;0-10">
</head>

<body style='height:5000px; width:5000px'></body>