Here is the structure:
<container> <div class="row"> <div class="col-lg-6 col-md-6 col-sm-6">1</div> <div class="col-lg-6 col-md-6 col-sm-6">2</div> </div> </container> When the screen is narrowed, the first column remains at the top and the second moves to the bottom. How to make the second unit was at the top and the first at the bottom during the narrowing?
<container>? And ifcol-sm-6indicated thencol-lg-6 col-md-6is superfluous. And to rearrange the columns in the bootstrap, there are push and pull classes - Russian Bear