I know how to change stack order using push-pull classes, but as far as I know (and tried) it only works if you have two columns. In my design I have a container with a box nested floating on the top-left. I would like it to be under the container content when viewing on mobile.
Here is a sketch of how it is on desktop: https://db.tt/nZGvCih0
And this is how I want it to look on mobile: https://db.tt/Td6PlwT5
Right now the box is on top of the container content.
(I'm using Bootstrap 3 and prefer not to use js)