<!DOCTYPE html>
<html lang="en-US">
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<style>
@media (aspect-ratio: 1/1) {
body {
color: red;
}
}
@media (min-aspect-ratio: 1/2) {
body {
color: green;
}
}
@media (max-aspect-ratio: 3/4) {
body {
color: blue;
}
}
</style>
</head>
<body>
<h1>CSS @media aspect-ratio</h1>
<p><strong>Note</strong>: Try to resize this output window.</p>
</body>
</html>