<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>浮动布局</title>
<link rel="stylesheet" type="text/css" href="st1.css">
</head>
<body>
<header>头部内容</header>
<aside>侧栏导航</aside>
<section>主体内容</section>
<footer>底部</footer>
</body>
</html>
/*浮动布局*/
*{
margin: 0;
padding: 0;
}
body{
width: 100%;
height: 960px;
}
header{
height: 5%;
background: rgba(25,25,25,0.25);
}
aside{
width: 30%;
height: 90%;
background: orange;
float: left;
border: 1px solid green;
box-sizing:border-box;
}
section{
width: 70%;
height: 90%;
background: rgba(180,90,45,0.6);
float: left;
}
footer{
height: 5%;
background: rgba(60,60,60,0.6);
clear: left;
}