c.documentElement;
var resizeEvt = 'orientationchange' in window ? 'orientationchange' : 'resize';
var recalc = function () {
var clientWidth = docEl.clientWidth;
if (!clientWidth) return;
if (clientWidth >= 1920) {
clientWidth = 1920;
}
docEl.style.fontSize = 10 * (clientWidth / 1920) + 'px';
docEl.dataset.percent = 10 * (clientWidth / 1920);
};
recalc();
doc.documentElement.classList.add('iosx' + win.devicePixelRatio);
if (typeof doc.addEventListener != "function") return;
win.addEventListener(resizeEvt, recalc, false);
})(document, window);
