add

src/main/resources/static/css/product/instruement-list.css

@@ -40,6 +40,7 @@
         width:1040px;
         display: inline-block;
         border-left: 1px solid #f7f7f7;
+        font-size: 0;
     }
     .classification .class-nav-main div.on{
         color: #e15616;