diff --git a/src/Board.js b/src/Board.js
index 7120bb43f069497c0c5e903d6f2af3375113ef63..8444cdbfee182cadc8226c9745903ef4a7c74333 100755
--- a/src/Board.js
+++ b/src/Board.js
@@ -17,7 +17,7 @@ import DemoString from './String'
 // import {flexlayout_json as json} from './demo-1-config'
 import {flexlayout_json as json} from './devel-config'
 
-// CSS
+// CSS common to the whole app
 import './Common.css'
 
 class ObservableStore {