<html>
<body>
<div>                
   <div style="border:2px solid red; FLOAT: left; width:550px">                        
     There should be a green border table below this:         
   </div>                                     
   <table style="border:2px solid green;width:100%; ">
     <tr> <td height="400" > </td> </tr>
   </table>
</div>
       
</body>

</html>