diff --git a/_layouts/default.html b/_layouts/default.html
index 5c23888..3e7c7f3 100644
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -1,8 +1,9 @@
 <!DOCTYPE html>
 <html>
 <head>
-    <meta charset='utf-8'>
-    <meta http-equiv="X-UA-Compatible" content="chrome=1">
+    <meta charset='utf-8' />
+    <meta http-equiv="X-UA-Compatible" content="chrome=1" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
 
     <link rel="stylesheet" type="text/css" href="{{ site.url }}/css/layout-bright.css" media="screen" />
     <link rel="stylesheet" type="text/css" href="{{ site.url }}/css/pygment_trac.css" media="screen" />
