diff --git a/packages/react-dev-utils/failFast.js b/packages/react-dev-utils/failFast.js
index 32bb9df5..84a80612 100644
--- a/packages/react-dev-utils/failFast.js
+++ b/packages/react-dev-utils/failFast.js
@@ -74,7 +74,8 @@
 
   const omittedFramesStyle = {
     color: black,
-    'margin': '1.5em 0'
+    'font-size': '0.9em',
+    'margin': '1.5em 0',
   }
 
   const preStyle = {