fix helper number issue with referenceLayer

Author: afshinm

introjs.css

@@ -67,6 +67,11 @@ tr.introjs-showElement > th {
   position: absolute;
   z-index: 10000000;
   background-color: transparent;
+  -webkit-transition: all 0.3s ease-out;
+     -moz-transition: all 0.3s ease-out;
+      -ms-transition: all 0.3s ease-out;
+       -o-transition: all 0.3s ease-out;
+          transition: all 0.3s ease-out;
 }
 
 .introjs-helperLayer *,
@@ -82,7 +87,7 @@ tr.introjs-showElement > th {
 .introjs-helperNumberLayer {
   position: absolute;
   top: -16px;
-  left: 16px;
+  left: -16px;
   z-index: 9999999999 !important;
   padding: 2px;
   font-family: Arial, verdana, tahoma;