diff -r a2a452c1ed2c -r 216eac8b08b4 src/main/scala/bootstrap/liftweb/Boot.scala
--- a/src/main/scala/bootstrap/liftweb/Boot.scala	Tue Apr 03 15:55:54 2012 +0200
+++ b/src/main/scala/bootstrap/liftweb/Boot.scala	Thu Apr 12 10:52:18 2012 +0200
@@ -40,6 +40,9 @@
       Menu.i("Home") / "" , ContactSnippet.menu)
 
     LiftRules.setSiteMap(SiteMap(menus:_*))
+
+    LiftRules.htmlProperties.default.set { r: Req =>
+      Html5Properties(r.userAgent) }
   }
 }