@zeix/ui-element/docs-src/components/card-callout/card-callout.html

UIElement - a HTML-first library for reactive Web Components

<card-callout>This is an informational message.</card-callout>
<card-callout class="tip">Remember to hydrate while coding!</card-callout>
<card-callout class="caution">Be careful with this operation.</card-callout>
<card-callout class="danger">This action is irreversible!</card-callout>
<card-callout class="note">This is just a side note.</card-callout>