Bootstrap class: **.flex-*-row**

<div class="d-flex flex-row">
  <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 flex-sm-row">...</div>
<div class="d-flex flex-md-row">...</div>
<div class="d-flex flex-lg-row">...</div>
<div class="d-flex flex-xl-row">...</div>

Preview

Flex item 1

Flex item 2

Flex item 3

Tips 💡

You don't need to remember all CSS classes. Just use the Bootstrap Editor instead.

More in Bootstrap Flexbox

Bootstrap 4 & 5