{{ $stylesheets := slice }}
{{ with .Resources.Match "*.css" }}
  {{ range . }}
    {{ $stylesheets = $stylesheets | append (. | resources.ExecuteAsTemplate .Name .) }}
  {{ end }}
  {{ if hugo.IsProduction }}
    {{ $stylesheets = slice ($stylesheets
                    | resources.Concat (printf "%s/page.css" $.File.Dir)
                    | fingerprint "md5") }}
  {{ end }}
{{ end }}
{{ return $stylesheets }}