Revert "fix scroll"

This reverts commit e8fe9c6c.

@@ -169,7 +169,7 @@ export default {
       const {url = ''} = firstNav;
       this.selectedCategory = queryString.parse(url);
     }
-
+    
     this.refreshProductList(this.active);
   },
   methods: {
@@ -442,12 +442,21 @@ export default {
 }
 .scroll-nav-wrap {
   position: relative;
-  background-color: #fefefe;
+
+  &:after {
+    content: "";
+    position: absolute;
+    width: 100%;
+    height: 100px;
+    box-shadow: 0 0 120px 100px #f2f2f2 !important;
+    z-index: -1;
+  }
 
   &.fixed-nav {
     width: 100%;
     position: absolute;
     z-index: 10;
+    background-color: #fefefe;
     overflow: hidden;
   }
 }