Did u try to change the padding-bottom to 10 (for example)?
In my case that was another reason..
By the way the solution proposed in the posts don’t allow to see the image in the mobile device.
For SHUFFLEHOUND SUPPORT
1) what’s the exactly dimension (px x px) of the standard image in the portfolio gallery?
2) Is it possible to change the colour of the dots and the arrow under and aside of the image in the portfolio gallery?
3) How can I reduce the text size on the previw of the portfolio on the home page? (see attachment).