diff --git a/docs/zh_CN/arduino/arduino_development.md b/docs/zh_CN/arduino/arduino_development.md
index 67624285..27389b58 100644
--- a/docs/zh_CN/arduino/arduino_development.md
+++ b/docs/zh_CN/arduino/arduino_development.md
@@ -84,4 +84,3 @@
 
 
 
-</style>
\ No newline at end of file