github.com/fighterlyt/hugo@v0.47.1/tpl/tplimpl/embedded/templates/shortcodes/youtube.html (about)

     1  {{- $pc := .Page.Site.Config.Privacy.YouTube -}}
     2  {{- if not $pc.Disable -}}
     3  {{- $ytHost := cond $pc.PrivacyEnhanced  "www.youtube-nocookie.com" "www.youtube.com" -}}
     4  {{- $id := .Get "id" | default (.Get 0) -}}
     5  {{- $class := .Get "class" | default (.Get 1) }}
     6  <div {{ with $class }}class="{{ . }}"{{ else }}style="position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;"{{ end }}>
     7    <iframe src="//{{ $ytHost }}/embed/{{ $id }}{{ with .Get "autoplay" }}{{ if eq . "true" }}?autoplay=1{{ end }}{{ end }}" {{ if not $class }}style="position: absolute; top: 0; left: 0; width: 100%; height: 100%; border:0;" {{ end }}allowfullscreen title="YouTube Video"></iframe>
     8  </div>
     9  {{ end -}}