修改领券中心bug

pages/discountCoupon/index.wxml

@@ -3,7 +3,7 @@
 <van-tabs active="{{ active }}" bind:change="onChange">
   <van-tab title="我的优惠券">
     <view wx:if="{{currentList.length}}">
-      <view wx:for="{{currentList}}" wx:key="id"> 
+      <view wx:for="{{currentList}}" wx:key="id" class="item"> 
             <discount-coupon data="{{item}}" type="{{3}}" />
         </view>
     </view>
@@ -11,7 +11,7 @@
   </van-tab>
   <van-tab title="领券中心">
     <view wx:if="{{canGetList.length}}">
-      <view wx:for="{{canGetList}}" wx:key="id"> 
+      <view wx:for="{{canGetList}}" wx:key="id" class="item"> 
             <discount-coupon data="{{item}}" type="{{1}}"  bind:get="getCanGet" />
         </view>
     </view>