Fixed - TimePicker - Layout Issue on Mobile and Large screens

Author: kevzlou7979

src/main/resources/gwt/material/design/addins/client/timepicker/resources/css/timepicker.css

@@ -53,8 +53,9 @@
 }
 
 .clock-overlay{
-    position: absolute !important;
+    position: fixed !important;
     width: 100% !important;
+    top: 0 !important;
     left: 0 !important;
     bottom: 0 !important;
     right: 0 !important;