Hi,
I went through the source code, the height for the expanded element is set using inline style via jquery. The simple solution would be to mark the CSS height for that element class with !important, however, that would basically be hard coding the height, which is not the best solution if the expanded content height changes. But if that is the way you want to go, let me know and I will reduce my bid. My current bid assumes jquery code changes.
Regards,
A. Sengupta