diff --git a/packages/plugins/materials/src/component/Main.vue b/packages/plugins/materials/src/component/Main.vue
index fc8f6f6..a787e4b 100644
--- a/packages/plugins/materials/src/component/Main.vue
+++ b/packages/plugins/materials/src/component/Main.vue
@@ -163,6 +163,12 @@ export default {
         white-space: nowrap;
       }
     }
+
+    :deep(.drag-item:nth-child(3n)) {
+      .component-item {
+        border-right: none;
+      }
+    }
   }
 
   .tiny-collapse {