Apply rules for widths' layouts smaller than 992px

[samzzz]

Hello,

I would like to apply a top-margin mt-5 for widths' layouts smaller than 992px.
This works fine: <div class="mt-5 mt-lg-0">

Is there a better way to do this?

I would like BS to introduce reverse breakpoints like:
≤576px
≤768px
≤992px
≤1200px
≤1400px
to solve my case in a more elegant way than using 2 classes: mt-5 and mt-lg-0

Regards,
Sam