diff --git a/12/style.css b/12/style.css
index 8264457..8e48a58 100644
--- a/12/style.css
+++ b/12/style.css
@@ -40,7 +40,7 @@ body{
   font-size: 24px;
   overflow-x: hidden;
   overflow-y: scroll;
-
+  margin: 0;
 }