Bootstrap CSS class .justify-content-*-end

<div class="d-flex justify-content-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 justify-content-sm-end">...</div>
<div class="d-flex justify-content-md-end">...</div>
<div class="d-flex justify-content-lg-end">...</div>
<div class="d-flex justify-content-xl-end">...</div>