Merge remote-tracking branch 'origin/feature/shopCoupon'

@@ -142,18 +142,17 @@ iframe[height="0"] {
   position: fixed;
   display: none;
   text-align: center;
-  width: 70%;
-  padding: 34PX 0;
+  padding: 15PX;
   top: 50%;
-  left: 50%;
-  margin-left: -35%;
-  margin-top: -45PX;
   background-color: rgba(0,0,0,.7);
   color: #fff;
   font-size: 18PX;
   border: none;
   z-index:4;
   border-radius: 10PX;
+  margin: 0 auto;
+  left: 50%;
+  transform: translateX(-50%);
 }
 
 .tap-hightlight {