Hxl01
/
index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
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    <title>Document</title>
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<body>
    <div class="header">hellow world</div>
    <div >safsdfjksdlpjfopsfjopsfj </div>
</body>
</html>