adjustPaddings

gistfile1.txt

const adjustPaddings = isScrollDown => {
	const container = document.querySelector(".cat-list");
	const currentPaddingTop = getNumFromStyle(container.style.paddingTop);
	const currentPaddingBottom = getNumFromStyle(container.style.paddingBottom);
	const remPaddingsVal = 170 * (listSize / 2);
	if (isScrollDown) {
		container.style.paddingTop = currentPaddingTop + remPaddingsVal + "px";
		container.style.paddingBottom = currentPaddingBottom === 0 ? "0px" : currentPaddingBottom - remPaddingsVal + "px";
	} else {
		container.style.paddingBottom = currentPaddingBottom + remPaddingsVal + "px";
		container.style.paddingTop = currentPaddingTop === 0 ? "0px" : currentPaddingTop - remPaddingsVal + "px";
	}
}