fixed: 商品详情页图片未加载时高度设定

@@ -117,10 +117,12 @@
 
 #ssr {
     .ssr-swiper-container {
+        height: 770px;
         background-color: #f7f7f7;
     }
     .ssr-swiper {
         width: 620px;
+        height: 770px;
         padding: 0 20px;
         background-color: #fff;
         transform: translateX(590px);
@@ -140,6 +142,7 @@
     overflow: hidden;
 
     .swipe-wrap {
+        height: 770px;
         width: 1800px;
         transform: translateX(-520px);
     }