diff --git a/src/react/JSONTree/JSONArrayNode.js b/src/react/JSONTree/JSONArrayNode.js
index bbd21411..47077486 100644
--- a/src/react/JSONTree/JSONArrayNode.js
+++ b/src/react/JSONTree/JSONArrayNode.js
@@ -18,13 +18,13 @@ const styles = {
     display: 'inline-block'
   },
   span: {
-    fontSize: 12,
+    fontSize: '0.85em',
     cursor: 'default'
   },
   spanType: {
     marginLeft: 5,
     marginRight: 5,
-    fontSize: 16
+    fontSize: '1em'
   }
 };
 
diff --git a/src/react/JSONTree/JSONObjectNode.js b/src/react/JSONTree/JSONObjectNode.js
index 9ee33012..7f8f4c5d 100644
--- a/src/react/JSONTree/JSONObjectNode.js
+++ b/src/react/JSONTree/JSONObjectNode.js
@@ -18,13 +18,13 @@ const styles = {
     display: 'inline-block'
   },
   span: {
-    fontSize: 12,
+    fontSize: '0.85em',
     cursor: 'default'
   },
   spanType: {
     marginLeft: 5,
     marginRight: 5,
-    fontSize: 16
+    fontSize: '1em'
   }
 };