Portfolio sorting problem


Hello, we’re working to publish our new portfolio page but we’ve an issue with the sorting of the portfolio inside the page.

We’ve created all single portfolio and we ordered them in DESC from the new one until the last one. We created all the images in photoshop to be resized like a grid and ordered starting and the way I mentioned before.

We still have problem with “white rows” and “white columns” between elements… what’s the problem?

Here’s the link to the page --> innobrain.it

This problem appear also in the homepage --> innobrain.it

Thank you for the support.