Can not seem to get centered logo in yahoo mail chrome or lotis notes 8.5
Any suggestions?

<table border="0" cellpadding="0" cellspacing="0" width="100%">
                                        <tbody>
                                            <tr>
                                                <td class="em_hide" width="30">&nbsp;</td>
                                                <td class="em_side_space">
                                                <table align="center" bgcolor="#ffffff" border="0" cellpadding="0" cellspacing="0" class="em_main_table" style="table-layout:fixed;" width="650">
                                                    <tbody>
                                                        <tr>
                                                            <td width="84" height="21" align="center" valign="top"><table width="84" border="0" align="center" cellpadding="0" cellspacing="0">
                                                              <tbody>
                                                                <tr>
                                                                  <td align="center" style="padding-top:8px; padding-bottom:8px;"><a href="#"><img alt="T" class="iwidth" height="63" src="m.jpg" style="display: block; border: 0; font-family: 'Open Sans', Arial, sans-serif; color: #86898B; font-style: normal; font-size: 18px; line-height:10px; width: 78; height: 63;" width="78" /></a></td>
                                                                </tr>
                                                              </tbody>
                                                          </table></td>
                                                        </tr>
                                                    </tbody>
                                                </table>
                                                </td>
                                                <td class="em_hide" width="30">&nbsp;</td>
                                            </tr>
                                        </tbody>
                                    </table>