diff --git a/res/style.css b/res/style.css
index bbe3baf..5537fa3 100755
--- a/res/style.css
+++ b/res/style.css
@@ -64,6 +64,7 @@ main {
     padding: 15px;
     border: 1px solid #ddd;
     text-align: center;
+    max-width: 500px;
 }
 
 .resultat div span {