Add class only Content Type

Hi, congratulations for your work is fantastic!

Is there a way to add the class to the only content type?

for example, go to:

<p>
content type content type  content type
<a href="mylink">[Read more...]</a>
</p>

to:

<div class="entry-content">
<p>
content type content type  content type
<a href="mylink">[Read more...]</a>
</p>
</div>

thank you!

https://wordpress.org/plugins/genesis-featured-content-widget/