<!-- responsive equal width cols, can be sm, md, lg, or xl -->
<div class="container">
<div class="row">
<div class="col-sm">1 of 3</div>
<div class="col-sm">1 of 3</div>
<div class="col-sm">1 of 3</div>
</div>
</div>
You don't need to remember all CSS classes. Just use the Bootstrap Editor instead.