<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>圣杯布局</title>
<style type="text/css">
* {
margin: 0px;
padding: 0px;
}
.container {
padding: 0px 200px;
height: 200px;
background: #eee;
min- 400px;
}
.left ,.right {
200px;
height: 200px;
background: red;
float: left;
}
.main {
100%;
height: 200px;
background: blue;
float: left;
}
.left {
margin-left: -100%;
position: relative;
left:-200px;
}
.right {
margin-left: -200px;
position: relative;
right: -200px;
}
</style>
</head>
<body>
<div class="container">
<div class="main">中间</div>
<div class="left">左边</div>
<div class="right">右边</div>
</div>
</body>
</html>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>shuipingchuzhijuzhong</title> <style type="text/css"> * { margin: 0px; padding: 0px; } .box { position: relative; 200px; height: 200px; background: lightgreen; } .out { position: absolute; left: 50%; top: 50%; } .in { background: red; margin-top: -50%; margin-left: -50%; } </style> </head> <body> <div class="box"> <div class="out"> <div class="in">内容</div> </div> </div> </body> </html>