diff --git a/src/index.html b/src/index.html
index 8a1e7f67..959b45cd 100644
--- a/src/index.html
+++ b/src/index.html
@@ -1,6 +1,9 @@
 <html>
     <head>
         <title>Grid Tool</title>
+        <meta 
+            name='viewport' 
+            content='width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0' />
     </head>
     <body>
         <noscript>You need to enable JavaScript to run this app.</noscript>
