<div class="row"> <!-- Code goes here! --> </div>
<div class="col-X"> <!-- Code goes here! --> </div>
One row with one full-width column:
<div class="row">
<div class="col-12">
<!-- Code goes here! -->
</div>
</div>
One row with 2 equal-width columns:
<div class="row">
<div class="col-6">
<!-- Left column code here -->
</div>
<div class="col-6">
<!-- Right column code here -->
</div>
</div>
One row with 3 equal-width columns:
<div class="row">
<div class="col-4">
<!-- First column code here -->
</div>
<div class="col-4">
<!-- Second column code here -->
</div>
<div class="col-4">
<!-- Third column code here -->
</div>
</div>
A full-width row with an h1 header:
<div class="row">
<div class="col-12">
<h1>Welcome to my website!</h1>
</div>
</div>

A row with a logo on the left, and a button on the right:
<div class="row">
<div class="col-6">
<img class="img-fluid" src="logo_image_link_here">
</div>
<div class="col-6">
<button class="btn btn-primary">Click Me!</button>
</div>
</div>
