How to fix the white space below the footer area?

Hi everyone, I made a gallery page with filters. Now when you try to switch filters and look at the footer part, there is a lot of white space. I observed that when you select a filter with a lot of images and choose a filter with very few, the whitespace is there.

This is a first for me. [Here’s the page](http://daryldeleonracing.com/gallery/) for you to check. Any help is highly appreciated

 

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