use rc-notification@3.2.0, use svg close icon in Notification component.

components/notification/index.tsx

@@ -85,6 +85,7 @@ function getNotificationInstance(prefixCls: string, placement: NotificationPlace
     className: `${prefixCls}-${placement}`,
     style: getPlacementStyle(placement),
     getContainer: defaultGetContainer,
+    closeIcon: <Icon className={`${prefixCls}-close-icon`} type={'close'}/>,
   }, (notification: any) => {
     notificationInstance[cacheKey] = notification;
     callback(notification);

components/notification/style/index.less

@@ -28,6 +28,11 @@
     }
   }
 
+  &-close-icon {
+    font-size: @font-size-base;
+    cursor: pointer;
+  }
+
   &-notice {
     padding: @notification-padding;
     border-radius: @border-radius-base;
@@ -99,13 +104,6 @@
       }
     }
 
-    &-close-x:after {
-      font-size: @font-size-base;
-      content: "\e633";
-      font-family: "anticon";
-      cursor: pointer;
-    }
-
     &-close {
       position: absolute;
       right: 22px;

package.json

@@ -67,7 +67,7 @@
     "rc-form": "^2.1.0",
     "rc-input-number": "~4.0.0",
     "rc-menu": "~7.0.2",
-    "rc-notification": "~3.1.1",
+    "rc-notification": "~3.2.0",
     "rc-pagination": "~1.16.1",
     "rc-progress": "~2.2.2",
     "rc-rate": "~2.4.0",