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Bootstrap class: .pt-1 / pt-*-#

<div class="pt-0 bg-primary d-inline-block">Padded Div</div>
<div class="pt-1 bg-primary d-inline-block">Padded Div</div>
<div class="pt-2 bg-primary d-inline-block">Padded Div</div>
<div class="pt-3 bg-primary d-inline-block">Padded Div</div>
<div class="pt-4 bg-primary d-inline-block">Padded Div</div>
<div class="pt-5 bg-primary d-inline-block">Padded Div</div>

<!-- respsonsive viariations -->
<div class="pt-sm-5 d-inline-block bg-primary">Padded Div</div>
<div class="pt-md-5 d-inline-block bg-primary">Padded Div</div>
<div class="pt-lg-5 d-inline-block bg-primary">Padded Div</div>
<div class="pt-xl-5 d-inline-block bg-primary">Padded Div</div>

Preview

Padded Div
Padded Div
Padded Div
Padded Div
Padded Div
Padded Div
Padded Div
Padded Div
Padded Div
Padded Div