<div class="d-inline bg-primary">d-inline</div>
<div class="d-sm-inline bg-primary">d-sm-inline</div>
<div class="d-md-inline bg-primary">d-md-inline</div>
<div class="d-lg-inline bg-primary">d-lg-inline</div>
<div class="d-xl-inline bg-primary">d-xl-inline</div>
You don't need to remember all CSS classes. Just use the Bootstrap Editor instead.