diff --git a/playground/playground.css b/playground/playground.css
index f5368101..bbe61778 100644
--- a/playground/playground.css
+++ b/playground/playground.css
@@ -95,14 +95,15 @@ body {
 .tabBar {
   color: white;
   height: 22px;
-  width: 170px;
   margin-top: -22px;
   padding-left: 5px;
   user-select: none;
+  width: 170px;
 }
 
 .tabBar.resizeable {
   cursor: row-resize;
+  width: 100%;
 }
 
 .tab {