事件延时修复

@@ -3,18 +3,17 @@ var $ = require('jquery'),
     Swiper = require('yoho.iswiper'),
     tip = require('../plugin/tip');
 
-var isCouponClick = true,
-    appVersion = $('input[name="app_version"]').val();
+var appVersion = $('input[name="app_version"]').val();
 
 $(".coupon-content .receive-btn").closest('.swiper-slide').on('click', function(e) {
     var that = this,
         code = $(this).data('id') || '';
 
-    if (isCouponClick === false) {
+    if (that.isCouponClick === false) {
         return false;
     }
 
-    isCouponClick = false;
+    that.isCouponClick = false;
 
     $.ajax({
         method: 'POST',
@@ -28,7 +27,7 @@ $(".coupon-content .receive-btn").closest('.swiper-slide').on('click', function(
         },
         success: function(data) {
 
-            isCouponClick = true;
+            that.isCouponClick = true;
 
             if (data.code === 200) {
                 tip.show('领取成功');
@@ -46,7 +45,7 @@ $(".coupon-content .receive-btn").closest('.swiper-slide').on('click', function(
         },
         error: function() {
             tip.show('网络断开连接了~');
-            isCouponClick = true;
+            that.isCouponClick = true;
         }
     });
 });

@@ -150,6 +150,7 @@ iframe[height="0"] {
     border: none;
     z-index:4;
     border-radius: 10PX;
+    margin: 0 auto;
 }
 
 .tap-hightlight {