I'm having issue with line-height in Outlook 2013. It renders fine in Outlook 2011. Any help will be appreciated. Below is my code:

 <!-- button -->
    <table align="left" border="0" cellpadding="0" cellspacing="0" class="tablet-button" style="background-color: #66328A" width="176">
        <tbody>
            <tr>
                <td align="center" class="tablet-button" height="26" style="font-family: arial, sans-serif; font-size: 12px;color: #fae262; text-align:center;line-height: 26px;" valign="middle"><a href="TBD" style="color: #fae262; text-align:center;text-decoration: none;font-weight:bold;line-height: 26px;"  target="_blank">CLAIM YOUR COUPON</a></td>
            </tr>
        </tbody>
    </table>
<!-- /button -->