diff --git a/packages/plugin-outline-pane/src/views/style.less b/packages/plugin-outline-pane/src/views/style.less
index 32fd979cf..1ecab512a 100644
--- a/packages/plugin-outline-pane/src/views/style.less
+++ b/packages/plugin-outline-pane/src/views/style.less
@@ -232,7 +232,7 @@
         display: flex;
         align-items: center;
         align-self: stretch;
-        overflow: visible;
+        overflow: hidden;
         margin-right: 5px;
 
         .tree-node-title-input {