<div class="d-flex align-items-end">
<div class="p-2">Flex item 1</div>
<div class="p-2">Flex item 2</div>
<div class="p-2">Flex item 3</div>
</div>
<!-- responsive variations -->
<div class="d-flex align-items-sm-end">...</div>
<div class="d-flex align-items-md-end">...</div>
<div class="d-flex align-items-lg-end">...</div>
<div class="d-flex align-items-xl-end">...</div>