diff --git a/source/css/_layout/mobile-sidebar.styl b/source/css/_layout/mobile-sidebar.styl
index fd10359..ac26c28 100644
--- a/source/css/_layout/mobile-sidebar.styl
+++ b/source/css/_layout/mobile-sidebar.styl
@@ -152,7 +152,7 @@
       transform: translateX(-254px)
       opacity: 1
 
-// pc界面打開mobile-menus需關閉sidebar
+  // pc界面打開mobile-menus需關閉sidebar
   #sidebar
     left: -300px !important
 
diff --git a/source/js/utils.js b/source/js/utils.js
index e5010dc..57e15c2 100644
--- a/source/js/utils.js
+++ b/source/js/utils.js
@@ -1,3 +1,19 @@
+function debounce(func, wait, immediate) {
+  var timeout
+  return function () {
+    var context = this
+    var args = arguments
+    var later = function () {
+      timeout = null
+      if (!immediate) func.apply(context, args)
+    }
+    var callNow = immediate && !timeout
+    clearTimeout(timeout)
+    timeout = setTimeout(later, wait)
+    if (callNow) func.apply(context, args)
+  }
+};
+
 function throttle(func, wait, options) {
   var timeout, context, args, result;
   var previous = 0;
@@ -81,6 +97,7 @@ function snackbarShow(text, showAction, duration) {
 }
 
 
+window.debounce = debounce
 
 window.throttle = throttle