init

src/config/rem.js

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+/** 10.4寸屏，4:3的，1366*768 */
+(function (doc, win) {
+  var docEl = doc.documentElement
+  var resizeEvt = 'orientationchange' in window ? 'orientationchange' : 'resize'
+  var recalc = function () {
+    var clientWidth = docEl.clientWidth
+    if (!clientWidth) return
+    docEl.style.fontSize = 100 * (clientWidth / 1366) + 'px'
+  }
+  if (!doc.addEventListener) return
+  win.addEventListener(resizeEvt, recalc, false)
+  doc.addEventListener('DOMContentLoaded', recalc, false)
+})(document, window)