Skin height

Hi,
I am using your awesome plugin to create a custom homepage, but there is one thing that I am struggling with. As you can see from the screenshot I have added, Each of the posts has a different length title, meaning each card is a different size, causing the white background of the two on the left to be shorter than the ones on the left. How can I match the size of the posts avoid this gap?

The page I need help with: [log in to see the link]