菜单没有选中效果

resources/views/maintenance/ownerMaterial/index.blade.php

@@ -3,7 +3,7 @@
 @section('title','项目耗材')
 
 @section('content')
-    <nav class="nav2">
+    <nav id="nav2">
         @component('maintenance.menu')@endcomponent
     </nav>