twbs--bootstrap/_includes/callout.html

{%- comment -%}
Usage: {% include callout.html content=callout type="type" %},
where content is a capture with the content
and type is one of: info (default), danger, warning
{%- endcomment -%}
{%- assign css_class = include.type | default: "info" -%}
<div class="bd-callout bd-callout-{{ css_class }}">
  {{- include.content | markdownify -}}
</div>