diff --git a/docs/standard/style_rules.md b/docs/standard/style_rules.md
index 0550f5e..3d30380 100644
--- a/docs/standard/style_rules.md
+++ b/docs/standard/style_rules.md
@@ -628,7 +628,7 @@ class SampleClass:
     ```
 
 
-!!! fail "不推荐
+!!! fail "不推荐"
 
     ```python
     class CheeseShopAddress: