define global message classes

Migrate power-ops to utilize.

Change-Id: Ie3946a6c957c78ef1b07b0c815448ed8d7e826b5
Signed-off-by: Michael Davis <michael.s.davis@ibm.com>
diff --git a/src/js/directives.js b/src/js/directives.js
index f8aae3d..a6cb77a 100644
--- a/src/js/directives.js
+++ b/src/js/directives.js
@@ -84,7 +84,7 @@
             scope.$watch('confirm', function(){
                 if(scope.confirm){
                     $timeout(function(){
-                        angular.element(e[0].parentNode).css({'min-height': e[0].querySelector('.power__confirm').offsetHeight + 'px'});
+                        angular.element(e[0].parentNode).css({'min-height': e[0].querySelector('.inline__confirm').offsetHeight + 'px'});
                     }, 0);
                 }else{
                     angular.element(e[0].parentNode).css({'min-height': 0+ 'px'});