docs: def css_tag(parser, token):
      """
      Renders a tag to include the stylesheet. It takes an optional second 
      parameter for the media attribute; the default media is "screen, projector".
      
      Usage::
  
          {% css "<somefile>.css" ["<projection type(s)>"] %}
  
      Examples::
  
          {% css "myfile.css" %}
          {% css "myfile.css" "screen, projection"%}
      """
      path = get_path_from_tokens(token)
  
      tokens = token.split_contents()
      if len(tokens) > 2:
          # Get the media types from the tag call provided by the user.
          media_type = tokens[2][1:-1]
      else:
          # Default values.
          media_type = "screen, projection"
  
      return CssTagNode(path, media_type=media_type)