WELLS Template - Description text under image in gallery (Mobile only)

Hi there,
As I'm trying to add seo descrptions to all my images, perfectly fine on computer. Although mobile the text is visbile under each image. As everyone else has had the same issue with this template, I've tried the custom CSS code. But it still doesn't work.
- Please see screenshot.

Would love to know what could be wrong or is there a updated code
for WELLS template 7.0

Thanks for your help!
- Aaron

Thanks Paul!
This worked perfectly! 

Another spot it shows, sidebar bottom (pc only). Is there a way to remove this too?
http://www.aaronwhitephotography.com/

Thanks for your help!