Add this in your <head>
element: <meta content='width=device-width, initial-scale=1, maximum-scale=1' name='viewport' />
<html>
<head>
<meta content='width=device-width, initial-scale=1, maximum-scale=1' name='viewport' />
</head>
<body>
<p>Lorem ipsum ...</p>
</body>
</html>