no-js-hugo-theme/layouts/shortcodes/notice.html

{{- .Scratch.Set "type" "note" -}}
{{- with .Get 0 }}{{ $.Scratch.Set "type" . }}{{ end -}}
<aside class="notice {{ .Scratch.Get "type" }}">
	<hr>
	<div class="notice-title">
		<img class="notice-title-icon" src="{{ "images/exclamation.svg" | relURL }}" height="15">
		<span>{{ with .Get 1 }}{{ . }}{{ else }}{{ .Scratch.Get "type" | humanize }}{{ end }}</span>
	</div>
	<div class="notice-body">{{ .Inner | markdownify }}</div>
	<hr>
</aside>