--- dijit-claro-stylus/site/module.styl	(Revision 71298)
+++ dijit-claro-stylus/site/module.styl	(Arbeitskopie)
@@ -147,3 +147,9 @@ 
 	margin-top: 0.75em;
 	clear: both;
 }
+
+.umc .umcAppDialog .dijitDialogPaneContent .umcButtonRow:last-child:after {
+    content: ''; 
+    display: block;
+    clear: both;
+}