<html>
<head>
<style type="text/css">
body, table { font: calibri 12pt; }
table { table-layout: fixed; }
th { width: 10em; }
td { width: 6em; }
table { border: medium solid red; }
td { border: thin solid blue; }
</style>
</head>
<body>
<table>
<tr id="row1">
<th>Header 1 </th><td>Cell 1 </td><td>Cell 2</td></tr>
</table>
    </body>
</html>