diff --git a/src/vs/workbench/contrib/notebook/browser/media/notebook.css b/src/vs/workbench/contrib/notebook/browser/media/notebook.css
index d809643d2c03705f7d4081fe772d9463af541ccd..de47d0d95e48b5101b2c269615f87abc06e1e0d2 100644
--- a/src/vs/workbench/contrib/notebook/browser/media/notebook.css
+++ b/src/vs/workbench/contrib/notebook/browser/media/notebook.css
@@ -440,8 +440,7 @@
 	position: absolute;
 	box-sizing: border-box;
 	top: 0px;
-	visibility: hidden;
-	opacity: 1;
+	opacity: 0;
 }
 
 .monaco-workbench .notebookOverlay .monaco-list .monaco-list-row .cell-focus-indicator-side {
@@ -470,7 +469,7 @@
 .monaco-workbench .notebookOverlay .monaco-list .monaco-list-row:hover .cell-focus-indicator,
 .monaco-workbench .notebookOverlay .monaco-list .monaco-list-row.cell-output-hover .cell-focus-indicator,
 .monaco-workbench .notebookOverlay .monaco-list .monaco-list-row.focused .cell-focus-indicator {
-	visibility: visible;
+	opacity: 1;
 }
 
 .monaco-workbench .notebookOverlay .monaco-list-row .cell-editor-part:before {