I have a problem reordering columns and stacking it when they got the same width. This is the code from my website:
...
<div class="row">
  <div class="col-md-3 com-sm-4 hidden-xs">col-1 (</div>
  <div class="col-md-6 com-sm-8">col-2 (main content)</div>
  <div class="col-md-3 com-sm-4 hidden-xs">col-3</div>
</div>
...
So what I'm trying to achieve on small devices is this:
--------- ---------
| col-1 | | col-2 |
|       | |       |
--------- |       |
| col-3 | |       |
|       | |       |
--------- |       |
          ----------
But what I got is this:
--------- ---------
| col-1 | | col-2 |
|       | |       |
--------- |       |
          |       |
          |       |
          |       |
--------- ---------
| col-3 | 
|       | 
---------
How can I order those two colums to stack together?
 
     
     
    