diff --git a/src/count-down/README.zh-CN.md b/src/count-down/README.zh-CN.md
index dc0b4c525..cfd1aada5 100644
--- a/src/count-down/README.zh-CN.md
+++ b/src/count-down/README.zh-CN.md
@@ -66,7 +66,7 @@ export default {
     margin: 0 4px;
     color: #ee0a24;
   }
-  .item {
+  .block {
     display: inline-block;
     width: 22px;
     color: #fff;