I'm having some trouble adding a left-hand side border to the two right-hand side table cells in an email template I'm creating for a small group of people.
<table class="content" style="table-layout:fixed; background: none repeat scroll 0% 0% #FFFFFF; width: 600px; max-width: 600px; margin: 0px auto;" cellspacing="0" cellpadding="0" border="0" align="center" bgcolor="#FFFFFF">
<thead cellspacing="0" cellpadding="0" border="0">
<tr style="width: 100%; background: red;" bgcolor="red" cellspacing="0" cellpadding="0" border="0">
<td style="width: 70%;" rowspan="2" align="left" valign="middle" colspan="8" cellspacing="0" cellpadding="0" border="0">
<h1>
<a style="text-decoration: none; font-weight: normal; letter-spacing: -1.5px; line-height: 22px; color: #ffffff; font-size: 22px; padding: 20px 20px 20px 20px;" href="#">
<img src="http://dummyimage.com/178x32/000000/fff.jpg&text=Image" alt="image" width="178" height="32" />
</a>
</h1>
</td>
<td style="width: 30%; border-left: 1px solid #FFFFFF;" align="right" colspan="4" cellspacing="0" cellpadding="0" border="0">
<table cellspacing="0" cellpadding="0" border="0">
<tbody cellspacing="0" cellpadding="0" border="0">
<tr cellspacing="0" cellpadding="0" border="0">
<td cellspacing="0" cellpadding="0" border="0" style="color: #ffffff; text-align: center; padding: 20px 20px 20px 20px; border-bottom: 1px solid #FFFFFF; font-family: Helvetica, Arial, Verdana; font-size: 8px; letter-spacing: 1.5px; text-transform: uppercase;">Ipsum Dolor Sit</td>
</tr>
<tr cellspacing="0" cellpadding="0" border="0">
<td cellspacing="0" cellpadding="0" border="0" style="color: #ffffff; text-align: center; padding: 20px 20px 20px 20px;">
<a style="text-decoration: none; color: #ffffff; font-family: Helvetica, Arial, Verdana; font-size: 8px; letter-spacing: 1.5px; text-transform: uppercase;" href="#" target="_blank">Cras Odio Ligula</a>
</td>
</tr>
</tbody>
</table>
</td>
</tr>
</thead>
<tbody>
</tbody>
<tfoot>
</tfoot>
How can I eliminate the empty space between the vertical and horizontal lines to ensure that the layout of the template is correct?