diff --git a/view/css/mod_setup.css b/view/css/mod_setup.css
index ee725d055..f0d91a0ae 100644
--- a/view/css/mod_setup.css
+++ b/view/css/mod_setup.css
@@ -32,3 +32,9 @@
        margin-top: 18px;
        margin-left: 20px;
 }
+
+main {
+	max-width: 790px;
+	margin-left: auto;
+	margin-right: auto;
+}