A tax is hereby imposed upon all persons engaged in the business of selling tangible personal property at retail in the village at the rate of 1% of the gross receipts from such sales made in the course of such business while this section is in effect, in accordance with the provisions of Illinois Municipal Code § 8-11-1 [i.e., ILCS Ch. 65, Act 5, § 8-11-1].
('73 Code, § 33.01(a))