If you set the border-collapse
style to collapse
on the parent table you should be able to style the tr
:
(styles are inline for demo)
<table style="border-collapse: collapse;">
<tr>
<td>No Border</td>
</tr>
<tr style="border:2px solid #f00;">
<td>Border</td>
</tr>
<tr>
<td>No Border</td>
</tr>
</table>
Output: