app/templates/dashboard/notification.html

{% extends 'default.html' %}

{% set active_page = "dashboard" %}

{% block title %}
  {{ notification.title }}
{% endblock %}

{% block default_content %}

  <div class="card">
    <div class="card-body">
      <h1 class="h3">
        {{ notification.title or "" }}
      </h1>

      <div>
        {{ notification.message | safe }}
      </div>

      <hr>

      <form method="post" class="mt-3" onsubmit="return confirm('This operation is not reversible, please confirm');">
        <button class="btn btn-outline-danger">Delete</button>
      </form>
    </div>
  </div>

{% endblock %}