<!DOCTYPE html>
<html lang="en-US">
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<style>
@media (orientation: landscape) {
h1{
color:green;
}
}
@media (orientation: portrait) {
h1{
color:blue;
}
}
</style>
</head>
<body>
<h1>CSS @media orientation</h1>
<p><strong>Note</strong>: Resize the width of this output screen and check the following.</p>
<ul>
<li>If h1 color is green, then the output screen is in 'landscape' mode.</li>
<li>If h1 color is blue, then the output screen is in 'portrait' mode.</li>
</ul>
</body>
</html>