init

src/config/rem.js

@@ -0,0 +1,12 @@
+(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 / 750) + 'px'
+  }
+  if (!doc.addEventListener) return
+  win.addEventListener(resizeEvt, recalc, false)
+  doc.addEventListener('DOMContentLoaded', recalc, false)
+})(document, window)