[Plugin: jQuery Pin It Button For Images] Images are displayed with a margin

I installed this plugin for Pinterest button and though it works just fine, it has great functionalities and it’s easy to install, some posts are showing up with an error.

Images are being displayed with a huge margin above. And I am pretty sure that the posts were not written and formatted that way.

What can I do?

This is an example of one of those posts:

http://www.aplacefortwiggs.com/2012/12/this-weekend-in-images-part-i/

Thank you!