cvat/site/layouts/shortcodes/scroll-code.html

<div class="scroll-code">
  {{ $lang := "" }}

  {{ with $.Get "lang" }}
    {{ $lang = $.Get "lang" }}
  {{ end }}

  {{ $highlight := "" }}
  <div style="overflow-y: auto; max-height: 500px;">
    {{- highlight $.Inner $lang $highlight -}}
  </div>
</div>