diff --git a/comingsoon.html b/comingsoon.html
index 0c19dcc..a9d243f 100644
--- a/comingsoon.html
+++ b/comingsoon.html
@@ -4,6 +4,7 @@
     <link rel="stylesheet" href="https://www.techtransthai.org/style.css">
     <meta http-equiv="Content-Language" content="th">
     <meta http-equiv="content-Type" content="text/html; charset=UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>Coming soon!</title>
     <link rel="icon" type="image/png" href="https://www.techtransthai.org/icons/ttt-org.png">
   </head>