Grid Container Alignment

I have a grid with four containers/columns. I would like to better align the different items in each container - for example, have all the buttons lined up across the four containers! How can I achieve this? I tried the solution that Tom gave using CSS, but either I did something wrong, or it didn’t work or something. Any suggestions?

Screen Shot 2021-07-01 at 5.08.11 PM|690x238