fix pay center bug. code review by Guanning

@@ -103,7 +103,7 @@ function hideWeChatPay() {
     var $payApps = $('.app');
 
     $payApps.each(function(idx, app) {
-        if ($(app).attr('id') === 'weixin') {
+        if ($(app).parent().attr('id') === 'weixin') {
             $(app).parent().css('display', 'none');
             return false;
         }

@@ -36,7 +36,7 @@
       > div {
         width: 60rem / $pxConvertRem;
         height: 60rem / $pxConvertRem;
-        background-image: url(http://localhost:8000/img/layout/pay-icon.png);
+        background-image: image-url("/img/layout/pay-icon.png");
         background-size: 90%;
         background-position-y: 8rem / $pxConvertRem;
         background-position-x: center;