How to move stacked columns up (using bootstrap but any css will do)
Looking to have column  move up when  is taller than 
Here is a bootply of the layout : http://www.bootply.com/KbAf8UOk9c
There is empty space between column  and  and I would like to have column  move up.
(just fyi, column  is already styled to move up under column )
UPDATE: In mobile view, the columns need to stack (same as the booply):
UPDATE 2 I am still working on solving this issue, and a solution has not yet been figure out.
Unfortunately there was no working solution submitted (I was hoping for a css only solution). I ended up finding a solution using jQuery masonry: http://masonry.desandro.com/