using this plugin in a 2×3 grid design

i am using this plugin in a 2 x 3 div grid design.

each nested div has this element in it.

<div column1>
<div content a></div>
<div content b></div>
<div content c></div>
</div>

<div column2>
<div content 1></div>
<div content 2></div>
<div content 3></div>
</div>

.column1

{
float:left
width 50%
}

.column2

{
float:right
width 50%
}

So the layout will look like
a1
b2
c3

And when clicking on the plugin elment it will only push down the respective column.

However when resizing it to a mobile version. The parent divs will reorder the nested div.
output will be abc123. but i want to order to be the same as on desktop
a1b2c3.

Any idea how to do this?