index.html
<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>My Media Queries</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
</body>
</html>style.css
@charset "utf-8";
body {
background: pink;
}
/* width >= 600px */
@media (min-width: 600px) {
body {
background: skyblue;
}
}
@media (min-width: 800px) {
body {
background: orange;
}
}