diff --git a/style.css b/style.css
index f02ebf3..2df0498 100644
--- a/style.css
+++ b/style.css
@@ -166,7 +166,7 @@ audio {
 }
 
 hr {
-  color: light-dark(black, whitesmoke);
+  border-color: light-dark(black, whitesmoke);
 }
 
 #title-1>.h1-container {