<!DOCTYPE html>
<html lang="en-US">
<head>
<style media="screen and (grid: 0)">
#grid{
color:#ffffff;
}
#bitmap{
color:green;
}
</style>
<style media="screen and (grid: 1)">
#grid{
color:green;
}
#bitmap{
color:#ffffff;
}
</style>
</head>
<body>
<p id="grid">Your device use a grid.</p>
<p id="bitmap">Your device use a bitmap.</p>
</body>
</html>