(function(doc, win) {
var docEl = doc.documentElement,
resizeEvt = 'orientationchange' in window ? 'orientationchange' : 'resize',
recalc = function() {
var clientWidth = docEl.clientWidth;
if (!clientWidth) return;
docEl.style.fontSize = 20 * ((clientWidth >= 640 ? 640 : clientWidth) / 320) + 'px';
};
recalc();
if (!doc.addEventListener) return;
win.addEventListener(resizeEvt, recalc, false);
doc.addEventListener('DOMContentLoaded', recalc, false);
})(document, window);
(function (doc, win) {
var docEl = doc.documentElement,
isIOS = navigator.userAgent.match(/iphone|ipod|ipad/gi),
dpr = isIOS? Math.min(win.devicePixelRatio, 3) : 1,
dpr = window.top === window.self? dpr : 1, //被iframe引用时,禁止缩放
dpr = 1, // 首页引用IFRAME,强制为1
scale = 1 / dpr,
resizeEvt = 'orientationchange' in window ? 'orientationchange' : 'resize';
docEl.dataset.dpr = win.devicePixelRatio;
if(navigator.userAgent.match(/iphone/gi) && screen.width == 375 && win.devicePixelRatio == 2){
docEl.classList.add('iphone6')
}
if(navigator.userAgent.match(/iphone/gi) && screen.width == 414 && win.devicePixelRatio == 3){
docEl.classList.add('iphone6p')
}
var metaEl = doc.createElement('meta');
metaEl.name = 'viewport';
metaEl.content = 'initial-scale=' + scale + ',maximum-scale=' + scale + ', minimum-scale=' + scale;
docEl.firstElementChild.appendChild(metaEl);
var recalc = function () {
var width = docEl.clientWidth;
if (width / dpr > 640) {
width = 640 * dpr;
}
docEl.style.fontSize = 100 * (width / 640) + 'px';
};
recalc()
if (!doc.addEventListener) return;
// win.addEventListener(resizeEvt, recalc, false);
})(document, window);
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