<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>圣杯布局</title>
<style>
* {
margin: 0;
padding: 0;
}
.left,
.middle,
.right {
float: left;
height: 400px;
position: relative;
}
.left {
width: 200px;
background-color: yellow;
margin-left: -100%;
left: -200px;
}
.middle {
background-color: black;
width: 100%;
color: red;
}
.right {
width: 220px;
background-color: grey;
right: -220px;
margin-left: -220px;
z-index: 1;
}
header {
height: 100px;
background-color: red;
}
main {
overflow: hidden;
background-color: #fff;
padding: 0 220px 0 200px;
}
footer {
height: 100px;
background-color: red;
}
</style>
</head>
<body>
<header>圣杯布局头部</header>
<main>
<div class="middle">中间自适应</div>
<div class="left">左边固定</div>
<div class="right">右边固定</div>
</main>
<footer>底部</footer>
</body>
</html>
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