<div class="bg-primary">bg-primary</div>
<div class="bg-secondary">bg-secondary</div>
<div class="bg-success">bg-success</div>
<div class="bg-danger">bg-danger</div>
<div class="bg-warning">bg-warning</div>
<div class="bg-info">bg-info</div>
<div class="bg-light">bg-light</div>
<div class="bg-dark">bg-dark</div>
<div class="bg-body">bg-body</div>
<div class="bg-white">bg-white</div>
<div class="bg-transparent">bg-transparent</div>