IOS9 Safari without navbar

<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=1">
<style>
body { height: 100vh; padding: 0; margin: 0; }
div.content { height: 100%; }
div.spacer { height: 1px; }
</style>
</head>
<body>
<div class="content">
Content
</div>
<div class="spacer"></div>
</body>
</html>