A majority of the members of the Civil Service Commission shall constitute a quorum, and a majority vote of the members appointed to the Commission shall be necessary to take any action and for passage of motions. Rules providing for the number and manner of calling regular meetings and special meetings, and to provide for the conduct and government of meetings, may be adopted by a majority vote of the members appointed to the Commission; however, such rules shall not conflict with the provisions of this Charter or any ordinance passed by the Council.