diff --git a/html/header.html b/html/header.html
index d60e0d1..dca2cbb 100644
--- a/html/header.html
+++ b/html/header.html
@@ -3,6 +3,7 @@
 
 <head>
     <meta charset="UTF-8">
+    <meta name=viewport content='width=device-width, initial-scale=1'>
     <meta name="robots" content="nosnippet">
 
     <style>
@@ -57,6 +58,10 @@
             blockquote {
                 margin: 0 1em;
             }
+
+            div.container {
+                max-width: 100%;
+            }
         }
     </style>
 
