Example:
<div class="row">
<div class="col-xs-12 col-md-6 m-xs-10 m-md-5">
</div>
<div class="col-xs-12 col-md-6 m-xs-10 m-md-5">
</div>
</div>
Breakpoints are as follows:
.m-xs-??
.p-xs-??
@media (min-width: 768px) {
.m-sm-??
.p-sm-??
}
@media (min-width: 992px) {
.m-md-??
.p-md-??
}
@media (min-width: 1200px) {
.m-lg-??
.p-lg-??
}