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

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

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

Preview

Spaced Div
Spaced Div
Spaced Div
Spaced Div
Spaced Div
Spaced Div
Spaced Div
Spaced Div
Spaced Div
Spaced Div

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