![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
Correction status：qualified
Teacher's comments：
Collection
Collection
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>比翼双飞布局</title>
<style type="text/css">
.header,.footer{width: 100%;height: 60px;background-color: dimgray;}
.content{width:1000px;min-height: 100%;text-align: center;line-height: 60px;
background-color: #2A98FF;margin: auto;}
.container{width: 1000px;margin: auto;background-color: yellow;overflow: hidden;}
.wrap{width: 100%;float: left;background-color: rebeccapurple;}
.main{min-height: 600px;background-color: wheat;margin: 0 200px;}
.left{width: 200px;float: left;min-height: 600px;background-color: chartreuse;margin-left: -1000px;}
.right{width: 200px;float: left;min-height: 600px;background-color: red;margin-left: -200px;}
.footer{
clear: both;}
</style>
</head>
<body>
<div class="header">
<div class="content">网站头部</div>
</div>
<!-- 主体 -->
<div class="container">
<div class="wrap">
<div class="main">主体内容区</div>
</div>
<div class="left">左侧</div>
<div class="right">右侧</div>
</div>
<!-- 底部 -->
<div class="footer">
<div class="content">网站底部</div>
</div>
</body>
</html>点击 "运行实例" 按钮查看在线实例
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>圣杯布局</title>
<style type="text/css">
.header,.footer{width:100%;height: 60px;background-color:
;}
.content{width: 1000px;text-align: center;line-height:60px;
margin: auto;background-color:hotpink}
.container{width: 600px;margin: auto;overflow: hidden;
background-color: navajowhite;padding: 0 200px;}
.main{width:100%;background-color: #2A98FF;float: left;
min-height: 600px;
}
.left{width: 200px;background-color: chartreuse;float: left;
min-height: 600px;margin-left: -100%;
position: relative;
left:-200px;
}
.right{width: 200px;background-color: blue;float: left;
min-height: 600px;
margin-left: -200px;
position: relative;
right:-200px;
}
.footer{
clear: both;}
</style>
</head>
<body>
<div class="header">
<div class="content">网站头部</div>
</div>
<!-- 内容区 -->
<div class="container">
<div class="main">主体</div>
<div class="left">左侧</div>
<div class="right">右侧</div>
</div>
<!-- 底部 -->
<div class="footer">
<div class="content">网站底部</div>
</div>
</body>
</html>点击 "运行实例" 按钮查看在线实例