<div class="d-block d-xxl-inline-flex p-4 bg-secondary">
<div class="p-4 bg-primary"></div>
<div class="p-4 bg-info"></div>
<div class="p-4 bg-primary"></div>
</div>
<div class="d-block d-xxl-inline-flex p-4 bg-secondary">
<div class="p-4 bg-primary"></div>
<div class="p-4 bg-info"></div>
<div class="p-4 bg-primary"></div>
</div>
You don't need to remember all CSS classes. Just use the Bootstrap Editor instead.