app/views/mailer/_notification_settings_button.html.erb
<table <%= placeholder_table_styles %>>
<tr>
<td style="padding: 8px 12px; border: 1px solid #878787; border-radius: 16px; overflow: hidden; text-overflow: ellipsis;white-space: nowrap;">
<a href="<%= url %>"
target="_blank"
style="color: #333333; text-decoration: none; font-size: 14px;white-space: nowrap;">
<%= text %>
</a>
</td>
</tr>
</table>