计算设计图尺寸与窗口宽度,窗口宽度放大100倍
即1rem = 100px
在head标签中引入,让页面一加载就适应屏幕
; (function (win) {
var tid;
function refreshRem() {
let designSize = 1920; // 设计图尺寸
let html = document.documentElement;
let wW = html.clientWidth;// 窗口宽度
let rem = wW * 100 / designSize;
document.documentElement.style.fontSize = rem + 'px';
}
win.addEventListener('resize', function () {
clearTimeout(tid);
tid = setTimeout(refreshRem, 300);
}, false);
win.addEventListener('pageshow', function (e) {
if (e.persisted) {
clearTimeout(tid);
tid = setTimeout(refreshRem, 300);
}
}, false);
refreshRem();
})(window);
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