Simple. Make a container table with two columns, 50%, and then stick each of your tables in a column.
Here is the code: <table border="1" cellpadding="0" cellspacing="0" style="border-collapse: collapse" bordercolor="#000000" width="400"> <tr> <td> </td> <td width="50%" rowspan="10"> </td> </tr> <tr> <td> </td> </tr> <tr> <td> </td> </tr> <tr> <td> </td> </tr> <tr> <td> </td> </tr> <tr> <td> </td> </tr> <tr> <td> </td> </tr> <tr> <td> </td> </tr> <tr> <td> </td> </tr> <tr> <td> </td> </tr> </table> Code (markup):