MAGETWO-45058: [IE9] impossible to create attribute in configurable product

Author: Oleksandr Dubovyk

app/design/adminhtml/Magento/backend/web/css/source/components/_popups.less

@@ -435,6 +435,15 @@
             .menu-wrapper {
                 display: none;
             }
+
+            .page-actions{
+                button{
+                    float: none;
+                }
+                .primary{
+                    float: right;
+                }
+            }
         }
     }
 }