No openings shall be permitted in or on any sidewalks in the city for the transmission of light to basements or floors below, unless such openings shall be covered on a level with the sidewalks, with floor lights not over four inches (4") square nor less than three-fourths (3/4) of an inch thick, set in metal frames. No railings shall be permitted about any lights in the sidewalks to basements or floors below, nor shall any openings be allowed or permitted for the purpose of transmitting light to basements or floors below. All methods of transmitting light to basements or floors below shall be arranged so as to be on a level with such sidewalks and shall not leave any opening therein, nor shall any railing be allowed around the same. (Ord. 416, 1-3-1994)