<div class="pb-0 bg-primary d-inline-block">Padded Div</div>
<div class="pb-1 bg-primary d-inline-block">Padded Div</div>
<div class="pb-2 bg-primary d-inline-block">Padded Div</div>
<div class="pb-3 bg-primary d-inline-block">Padded Div</div>
<div class="pb-4 bg-primary d-inline-block">Padded Div</div>
<div class="pb-5 bg-primary d-inline-block">Padded Div</div>
<!-- respsonsive viariations -->
<div class="pb-sm-5 d-inline-block bg-primary">Padded Div</div>
<div class="pb-md-5 d-inline-block bg-primary">Padded Div</div>
<div class="pb-lg-5 d-inline-block bg-primary">Padded Div</div>
<div class="pb-xl-5 d-inline-block bg-primary">Padded Div</div>
You don't need to remember all CSS classes. Just use the Bootstrap Editor instead.