diff --git a/css/main.css b/css/main.css
index 2392a9a..3c29c09 100644
--- a/css/main.css
+++ b/css/main.css
@@ -3,6 +3,9 @@ main {
     max-width:1200px;
     margin: 0 auto;
     padding: 20px;
+
+    width: 100%;
+    box-sizing: border-box;
 }
 
 body {