You have modified the code for these. Please don't change any code, you should only be changing text and images only. For example you have added in a closing div here:
When the original code is simply:
You have also completely removed this div:
And I am sure there are other changes, those are just examples. I am attaching a document of the code showing your code vs. the original code.
Please put the code back to the original code and only change images and text and nothing else:http://www.shape5.com/demo/hexa_corp/index.php/pages/portfolio