and set the 'height' 1/2 of full screen.
this is my code:
<!DOCTYPE html PUBLIC "-//WAPFORUM//DTD XHTML Mobile 1.0//EN" "http://www.wapforum.org/DTD/xhtml-mobile10.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" manifest="/m?manifest=1">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="viewport" content="width=device-width,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no, width=device-width">
</head>
<body >
<div></div>
<style type="text/css">
div{
background:red;
}
</style>
<script src="jquery-1.4.2.js" type="text/javascript"></script>
<script type="text/javascript">
</script>
</body>
</html>
thanks