After the <table> tag, the 2nd best friend of email developer: it defines a cell in an HTML table. It can as a standard cell (<td> for Table Data), or as a heading cell (<th> for Table Header).


If in SEO these two tags have a semantic distinction, they have, especially in emailing, a technical variation. Indeed, the CSS display:block property assigned to a <td> is not properly supported on Android mobile since Android 4.4 KitKat. It's in this case that an email developer will use a <th> element instead of a <td>.

A cell can contain both textual data (plain text) as well as visual data (images, visuals, animated gifs). Finally, cells contain most of the content of an email. It's uncommon to put data content outside cells. Thus, a cell will look like, in final version for textual data, as follows:

<td><p style="font-family:Arial, Helvetica, sans-serif; font-size:12px; color:#000000; text-align:left; line-height:18px;">Content</p></td>

<td> tag must be open and then, be closed: they're not self-closing tags. If you forget to close a tag, you may experience a rendering problem.

A question?