It would be
<div class="row">
<div class="small-12 medium-6 medium-push-3 columns">Main</div>
<div class="small-12 medium-3 medium-pull-6 columns">Left Sidebar</div>
<div class="small-12 medium-3 columns">Right Sidebar</div>
</div>
The first answer needs to use medium-push-3
instead of medium-push-6
and medium-pull-6
instead of medium-pull-3
.