fferent step heights (not required)
			step.forEach(function (step) {
				var v = 100 + Math.floor((Math.random() * window.innerHeight) / 4);
				step.style.padding = v + "px 0px";
			});

			// 1. setup the scroller with the bare-bones options
			// 		this will also initialize trigger observations
			// 2. bind scrollama event handlers (this can be chained like below)
			scroller
				.setup({
					// provide root element which is passed to IntersectionObserver as the root option
					root: document,
					s