diff --git a/README.md b/README.md
index 371900c..7459644 100644
--- a/README.md
+++ b/README.md
@@ -86,7 +86,7 @@
 
 ## Official block style
 
-####Basic
+#### Basic
 ```
 + (void)AR_animationWithDuration:(NSTimeInterval)duration
                       animations:(void (^)(void))animations;