diff --git a/index.css b/index.css
index 4be76db..6fba877 100644
--- a/index.css
+++ b/index.css
@@ -7,6 +7,7 @@ html, body, button, textarea {
 
 body {
   background-color: #0079bf;
+  margin: 0;
 }
 
 header {
@@ -50,7 +51,7 @@ button {
   box-sizing: border-box;
   padding: 10px;
   width: 270px;
-  margin: auto;
+  margin: 15px auto;
 }
 
 #list-title {