outline

<div class="alert primary-outline">
  	<strong>Primary!</strong> This is a Primary Alert
</div>
<div class="alert secondary-outline">
  	<strong>Secondary!</strong> This is a Secondary Alert
</div>
<div class="alert success-outline">
  	<strong>Success!</strong> This is a Success Alert
</div>
<div class="alert danger-outline">
  	<strong>Error!</strong> This is an Error Alert
</div>