Untitled

<html>
    <head>
    <style>
        div#menu {
            float: left;
            width: 250px;
            background-color: red;
        }
        div#content {
            float: left;
            margin-left: 20px;
            background-color: blue;
        }
        table#tbl {
            width: 100%;
            background-color: green;
        }
    </style>
    </head>
    <body>
        <div id="menu">
        menu
        </div>
        <div id="content">
            before table
            <table id="tbl">
                <tr><td>table content</td></tr>
                <tr><td>table content</td></tr>
            </table>
            after table
        </div>
    </body>
</html>