import getComputedStyle from "./getComputedStyle.js"; export default function isScrollParent(element) { // Firefox wants us to check `-x` and `-y` variations as well var _getComputedStyle = getComputedStyle(element), overflow = _getComputedStyle.overflow, overflowX = _getComputedStyle.overflowX, overflowY = _getComputedStyle.overflowY; return /auto|scroll|overlay|hidden/.test(overflow + overflowY + overflowX); }