inner page

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<html>
<head>
    <title></title>
    <meta http-equiv="content-type" content="text/html; charset=utf-8" />
    <script type="text/javascript">
window.onload = function () {
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    <style type="text/css">
html, body, p, div {padding: 0px; margin: 0px;}
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</head>
<body>
    <div style="width: 500px; height: 500px; background-color: lavender;">
        <p>vnitřní stránka</p>
    </div>
</body>
</html>