[TYPO3-english] Wrap tt_news content class

[Sergio]

I've defined the next template for latest tt_news items:

<!-- ###TEMPLATE_LATEST### begin
This is the template for the latest news, typically displayed on a frontpage
-->
<div class="row">
<!-- ###CONTENT### begin
This is the part of the template substituted with the list of news:
-->
<!-- ###NEWS### begin
Template for a single item
-->
<div class="four columns MY_OWN_CLASS">
<!--###LINK_ITEM###-->###NEWS_IMAGE###<!--###LINK_ITEM###-->

<h4><!--###LINK_ITEM###-->###NEWS_TITLE###<!--###LINK_ITEM###--></h4>
###NEWS_SUBHEADER###
</div>
<!-- ###NEWS### end-->
<!-- ###CONTENT###  end -->
</div>
<!-- ###TEMPLATE_LATEST### end -->

And I would like to add MY_OWN_CLASS with optionSplit to every div that
wraps the main news content.

How could I do this by TS?

Thanks in advance,
Sergio