html5 media自适应基本操作
上官波鸿
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>html5 media自适应基本操作</title>
<meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<!-- 外链方式 -->
<!-- <link rel="stylesheet" href="style.css" media="only screen and (max-width:640px)"> -->
<!-- 或者内嵌方式 -->
<style type="text/css">
*{
margin: 0;padding: 0;
}
.header,.container,.footer{
margin: 10px auto;
}
.container{height: 500px; background: #ababab;}
.header{
height: 100px;
background: #FCF
}
.footer{
height: 80px;
background: #000;
}
.left,.right,.main{
float: left;
height: 500px;
}
@media screen and (min-width: 960px){
.header,.container,.footer{
width: 960px;
}
.main{margin-left: 5px;background:#009006;width: 550px;}
.left,.right{width: 200px}
.right{margin-left:5px;}
}
@media screen and (min-width: 600px) and (max-width: 960px){
.header,.container,.footer{
width: 600px;
}
.main{margin-left: 5px;background:#009006;width: 435px;}
.left,.right{width: 160px}
.right{display: none;}
}
@media screen and (max-width: 400px){
.header,.container,.footer{
width: 400px;
}
.main{background:#009006;}
.main{height: 280px;}
.left,.right,.main{width: 400px; float: none; margin: 5px auto;}
.left,.right{height: 100px; background: red;}
}
</style>
</head>
<body>
<div class="header"></div>
<div class="container">
<div class="left">左</div>
<div class="main">中</div>
<div class="right">右</div>
</div>
<div class="footer">
</div>
</body>
</html>
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