Thanks for writing in! The default alignment of its element is always on top. You can only align the element at the middle center of the column if you enable the marginless columns option in the row settings. And in each of the columns, you’ll need to have some padding and insert an inline css vertical-align: middle;. Please check out my screenshot: http://prntscr.com/be3rox
Thanks for updating. I can’t give you exact pixel value as it depends on your setup and content. You can try increasing/decreasing values and see what fit most.