elixir:
  lang = case code_lang do
    :cql ->  "language-elixir"
    :sql ->  "language-sql"
    :elixir -> "language-elixir"
    _ ->  "language-shell"
  end
  code_lang = Atom.to_string(code_lang)

pre.code-normal-regular
  code class=lang = code_fragment
  textarea.code-snippet id="#{code_lang}-code-#{uuid}" = code_fragment
= renderer.button_copy(uuid, code_lang, renderer)