I couldn't figure out how to do it with tables, but you can do it with divs in strict mode:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "DTD/xhtml1-strict.dtd">

<html>

        <head>

                <title>

                        table test

                </title>

                <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />

                <style type="text/css">

                        html,body {

                                background: blue;

                                text-align: center;

                                margin: 0px;

                                padding: 0px;

                                height: 100%;

                        }

                </style>

        </head>

        <body>

                <div style="height: 100%; border: 10px solid #000000">

                        <div style="height: 60px; border: 10px solid #FF0000">upper</div>

                lower</div>

        </body>

</html>
Also note that you don't have to have styles defined for elements; you can put CSS stuff directly in the style attribute.
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Bitt Faulk