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批改状态：合格
老师批语：加油！作业标题还是得改一下！
1.双飞翼布局
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>双飞翼布局</title>
<style>
.header,.footer {
width:100%;
height:60px;
background-color:lightgrey;
}
.content {
width:1000px;
min-height: 100%;
background-color: gray ;
text-align: center ;
margin: auto ;
line-height: 60px;
}
.container {
width:1000px;
margin: auto ;
background-color: yellow;
overflow: hidden;
}
.wrap {
width: 100%;
background-color:cyan ;
float:left;
}
.main {
min-height: 600px;
background-color: wheat ;
margin-left: 210px ;
margin-right: 210px ;
}
.left {
width:200px;
min-height: 600px ;
background-color: red ;
float:left ;
margin-left: -100% ;
}
.right {
width:200px;
min-height: 600px ;
background-color: pink ;
float:left ;
margin-left : -200px ;
}
</style>
</head>
<body>
<div class="header">
<div class="content">吉林嘉梦科技</div>
</div>
<div class="container">
<div class="wrap">
<div class="main">主体部分</div>
</div>
<div class="left">左</div>
<div class="right">右</div>
</div>
<div class="footer">
<div class="content">底部</div>
</body>
</html>2、圣杯布局
<!doctype html>
<html lang="en"></html>
3.QQ kefu
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>固定定位</title>
</head>
<style>
.body {
margin:0;
height: 2000px;
}
.box1{
position: fixed ;
bottom: 0;
right :0;
}
.close {
position: absolute;
right: 20px;
top:10px;
color: aliceblue;
}
</style>
<div class="box1">
<a href="">
<img src="qq.jpg" alt="在线kefu">
<span class="close" onclick="this.parentNode.style.display= "none" >X
</span>
</a>
</div>
</body>
</html>
点击 "运行实例" 按钮查看在线实例
手写部分：
已经完成，上传失败，图片
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