<html>
<head>
<meta charset="utf-8">
<title>メディアクエリ</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div id="container">
<div class="box"></div>
<div class="box"></div>
<div class="box"></div>
<div class="box"></div>
</div>
</body>
</html>
@charset "utf-8";
body {
background: #999;
}
.box {
width: 300px;
height: 300px;
background: #069;
margin: 10px auto;
}
@media screen and (min-width:768px) {
body {
background: #C39;
}
#container {
width: 620px;
margin: 0 auto;
overflow: hidden;
}
.box {
float: left;
margin: 5px;
}
}
@media screen and (min-width:960px) {
body {
background: #000;
}
#container {
width: 1240px;
}
}