code: def outer_horizontal_border_top(self):
          
          return u"{lm}{lv}{hz}{rv}".format(lm=' ' * self.margins.left,
                                            lv=self.border_style.top_left_corner,
                                            rv=self.border_style.top_right_corner,
                                            hz=self.outer_horizontals())
docs: The complete outer top horizontal border section, including left and right margins.
  
          Returns:
              str: The top menu border.