13 lines
541 B
JavaScript
13 lines
541 B
JavaScript
(function(doc, win) {
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var docEl = doc.documentElement,
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resizeEvt = 'orientationchange' in window ? 'orientationchange' : 'resize',
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recalc = function() {
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var clientWidth = docEl.clientWidth;
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if (!clientWidth) return;
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if(clientWidth>500) clientWidth=500
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docEl.style.fontSize = 20 * (clientWidth / 320) + 'px'; //在320px的屏幕上，1rem=20px
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};
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if (!doc.addEventListener) return;
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win.addEventListener(resizeEvt, recalc, false);
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doc.addEventListener('DOMContentLoaded', recalc, false);
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})(document, window); |