I need to replace the entire div for the success message called iphorm-success-message iphorm-hidden
My goal is to apply the bootstrap alert-success with a glyph icon.
<div class="alert alert-success" role="alert">
<span class="glyphicon glyphicon-exclamation-sign" aria-hidden="true"></span>
<span class="sr-only">Success:</span>
Your message has been sent
</div>
How do I achieve this without changing core files?