diff --git a/src/design/var/index.less b/src/design/var/index.less
index 1689f76d..90ceeae8 100644
--- a/src/design/var/index.less
+++ b/src/design/var/index.less
@@ -32,8 +32,8 @@
 
 @page-footer-z-index: 99;
 
-.bem(@n; @content) {
-  @{namespace}-@{n} {
-    @content();
-  }
-}
+//.bem(@n; @content) {
+//  @{namespace}-@{n} {
+//    @content();
+//  }
+//}