add icon in bootstrap code example
Example 1: add image icon bootstrap
<div class="text-center">
<img src="..." class="rounded" alt="...">
</div>
Example 2: bootsrap updateicon
<i class="fa fa-refresh" aria-hidden="true"></i>
Example 3: add image icon bootstrap
<img src="..." alt="..." class="img-thumbnail">
Example 4: heart button bootstrap
<button type="button" class="btn btn-default" aria-label="Left Align">
<span class="glyphicon glyphicon-align-left" aria-hidden="true"></span>
</button>
<button type="button" class="btn btn-default btn-lg">
<span class="glyphicon glyphicon-star" aria-hidden="true"></span> Star
</button>