diff --git a/static/style.css b/static/style.css
index 984cc1a..a251826 100644
--- a/static/style.css
+++ b/static/style.css
@@ -52,7 +52,7 @@ body {
   background: #fff;
   border-radius: 8px;
   padding: 30px 40px;
-  margin: 20px 0 20px;
+  margin: auto;
   border: 1px solid #999;
 }