Short answer:
Use white-space: nowrap; to prevent text from wrapping inside table cells, but ensure the table width is at least 320px for mobile compatibility.
Table snippet that works consistently across desktop, webmail, and mobile devices, including Outlook for Windows:
Adding white-space: nowrap; ensures that text stays on a single line within the table cell. This works best when the table width is 320px or wider, which aligns with mobile-friendly email design standards.
<table border="0" cellspacing="0" cellpadding="0" style="border:none; mso-table-lspace:0px; mso-table-rspace:0px; mso-cellspacing: 0px; mso-padding-alt: 0px 0px 0px 0px; border-collapse:collapse; width: 320px;">
<tr>
<td width="320" height="13" style="width: 320px;height: 13px; white-space: nowrap;">
<font face="Arial, Helvetica, Sans-Serif" color="#000000" style="FONT-SIZE: 13px">
</font>
</td>
</tr>
</table>This approach helps maintain consistent layout and prevents unwanted line breaks in email signatures.
