What is the effect of a referendum against a particular zoning ordinance amendment?

goes against a particular zoning ordinance amendment, or a mayors veto of such an ordinance if the city has granted the mayor such power. (See Referendum Committee v. City of Hermosa Beach (1986) 184 Cal.App.3d 152, 157, 229 Cal.Rptr. 51 ["The referendum process allows the voters to veto statutes and ordinances enacted by their elected legislative bodies before those laws become effective" (italics added) ].) Nothing in section 65860 indicates that members of a municipalitys legislative body must vote for a particular zoning ordinance amendment.

[236 Cal.Rptr.3d 846]