(function (doc, win) {
var docEl = doc.documentElement, //文档根标签
resizeEvent = 'orientationchange' in window ? 'orientationchang' : 'resize'; //viewport变化事件源
var rescale = function () {
win.clientWidth = docEl.clientWidth;
if (!win.clientWidth) return;
// (屏幕宽度/设计图宽度) = 缩放或扩大的比例值;
docEl.style.fontSize = 36 * (win.clientWidth / 375) + 'px';
}
if (!doc.addEventListener) return;
win.addEventListener(resizeEvent, rescale, false);
doc.addEventListener('DOMContentLoaded', rescale, false);
})(document, window);
移动端动态计算根元素的字体大小
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转载自blog.csdn.net/xiaomajia029/article/details/80512268
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