Filterable portfolio page based on CSS class

I have a portfolio page setup now that uses the Grid module from GenerateBlocks. I then have CSS classes setup on each portfolio item (I only did the first 5 for testing purposes) so that when I click on the category buttons above it uses jQuery to hide certain items and show others.

https://dev.experiencemoxie.com/moxie/work/

My problem is that the items don't rewrap once I hide some of the portfolio items. Is there a way to do this or does anyone have any other recommendations for how I could achieve a similar outcome? Thanks.