Roo/bootstrap/NavHeaderbar.js

diff --git a/Roo/bootstrap/NavHeaderbar.js b/Roo/bootstrap/NavHeaderbar.js
index eb80518..98d5ff2 100644 (file)
--- a/Roo/bootstrap/NavHeaderbar.js
+++ b/Roo/bootstrap/NavHeaderbar.js
@@ -44,7 +44,7 @@ Roo.extend(Roo.bootstrap.NavHeaderbar, Roo.bootstrap.NavSimplebar,  {
         
         var   cfg = {
             tag: this.nav || 'nav',
-            cls: 'navbar',
+            cls: 'navbar navbar-expand-md',
             role: 'navigation',
             cn: []
         };