<html>
<head>
<meta name="viewport" content="width=device-width, user-scalable=no">
</head>
<body>
<script type="text/javascript">
var viewportwidth;
var viewportheight;
// the more standards compliant browsers (mozilla/netscape/opera/IE7) use window.innerWidth and window.innerHeight
if (typeof window.innerWidth != 'undefined')
{
viewportwidth = window.innerWidth,
viewportheight = window.innerHeight
}
// IE6 in standards compliant mode (i.e. with a valid doctype as the first line in the document)
else if (typeof document.documentElement != 'undefined'
& typeof document.documentElement.clientWidth !=
'undefined' & document.documentElement.clientWidth != 0)
{
viewportwidth = document.documentElement.clientWidth,
viewportheight = document.documentElement.clientHeight
}
// older versions of IE
else
{
viewportwidth = document.getElementsByTagName('body')[0].clientWidth,
viewportheight = document.getElementsByTagName('body')[0].clientHeight
}
document.write('<p>Your viewport width is '+viewportwidth+'x'+viewportheight+'</p>');
</script>
</body>
</html>
Este escript esta disponible en el siguiente link: http://www.mejores-hosting.org/tools/viewportsize.html
El siguiente link muestra los tamaños de Viewport en diferentes Tablets y Teléfonos móbiles http://www.canbike.org/CSSpixels/