frappe/webnotes/templates/pages/message.html

{% block title %}{{ title }}{% endblock %}

{% block header %}<span class="text-{{ 'success' if success else 'danger'}}">{{ title }}</span>{% endblock %}

{% block content %}
<div class="message-content">
	<div class="panel panel-default">
		<div class="panel-body">
			<p>{{ message }}</p>
		</div>
	</div>
</div>
{% endblock %}