Merge remote-tracking branch 'webdev/MAGETWO-54501' into MAGETWO-54836

Author: Viktor Paladiychuk

app/design/adminhtml/Magento/backend/web/css/styles-old.less

@@ -3793,6 +3793,14 @@
         border-left: none !important;
     }
 
+    .rule-tree {
+        ._has-datepicker {
+            + .ui-datepicker-trigger {
+                position: static;
+            }
+        }
+    }
+
     .rule-param .label {
         color: #000;
         float: none;