I would do it in a classic engine section and put all the videos into columns the way you want and then edit the top padding in the video block to adjust for each video style. The grid gets really weird when you mess with padding inside the containers. When I do this I usually try to use some css selector from the video blocks that can be more generic than the ones you're using. I've had a few client sites where I did this but it is a custom solution. If you want to set up a classic page section with your videos stacked in columns I can look and see how complicated it would be to write up some CSS.
Ollie_bradford got a reaction from JayVanDyke in Resizing Video Blocks with Custom CSS to be correct height makes part of Section only one row on the Fluid Grid
