521539-1.html
<html>
<body onload="document.getElementById('f').style.height = '';">
<input id="f" type="file" style="height: 0;">
</body>
</html>
<html>
<body onload="document.getElementById('f').style.height = '';">
<input id="f" type="file" style="height: 0;">
</body>
</html>