For general installation and configuration take a look at the components package.
<!-- index.html -->
...
<body>
<div class="db-notification" data-icon="information_circle">
<h6>Headline</h6>
<p>Notification</p>
<button
class="db-button is-icon-text-replace"
data-size="small"
data-variant="ghost"
data-icon="cross"
>
Close Button
</button>
</div>
</body>