{{ $_hugo_config := `{ "version": 1 }` }}
{{ $styleParsed := .Get 0 | default "" }}
{{ $hasStyle := gt (len $styleParsed) 0 }}
{{ $style := .Get "style" | default $styleParsed }}
<div class="tabs{{ if $hasStyle }} {{ $style }}{{ end }}">
  {{ .Inner }}
</div>