fa-stack
The fa-stack
classes are used to stack icons on top of each other. The fa-stack
class is used on the parent container. The fa-stack-1x
class is used for the regularly sized icon. The fa-stack-2x
class is used on the larger icon.
Example
<span class="fa-stack fa-lg"><i class="fas fa-bug fa-stack-1x"></i><i class="fas fa-ban fa-stack-2x" style="color:red;"></i></span>