diff --git a/src/layouts/LeftTopMode.vue b/src/layouts/LeftTopMode.vue
index 43e5c32..8588654 100644
--- a/src/layouts/LeftTopMode.vue
+++ b/src/layouts/LeftTopMode.vue
@@ -58,6 +58,7 @@ $transition-time: 0.35s;
   }
   .content {
     flex: 1;
+    position: relative;
   }
 }