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57清除浮动.html
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57清除浮动.html
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<!--
* @Author: [email protected]
* @Date: 2023-09-19 18:52:06
* @LastEditors: [email protected]
* @LastEditTime: 2023-09-20 10:37:10
* @FilePath: /H5C3stu/57清除浮动.html
-->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
.box{
width: 600px;
/* 父子级标签，子级浮动，父级没有高度，后面的标准流盒子会收影响，显示到上层 */
/* 方案一：父级添加高度，缺陷不利于弹性展示内容 */
/* height: 300px; */
background-color: pink;
margin: 0 auto;
/* 方案五 */
overflow: hidden;
}
.left{
float: left;
width: 100px;
height: 300px;
background-color: grey;
}
.right{
float: right;
width: 486px;
height: 300px;
background-color: rgb(130, 182, 209);
}
/* 方案二 */
/* .clearfix {
clear: both;
} */
.foot{
height: 100px;
background-color: green;
}
/* 方案三 */
/* .clearfix::after{
content: '';
display: block;
clear: both;
height: 0;
visibility: hidden;
} */
/* 方案四：双伪元素清除,解决外边距塌陷问题 */
/* .clearfix::before,
.clearfix::after{
content: '';
display: table;
}
.clearfix::after{
clear: both;
} */
</style>
</head>
<body>
<!-- 方案三：单伪元素清除浮动 -->
<div class="box clearfix">
<div class="left"></div>
<div class="right"></div>
<!-- 方案二：父级内容末尾添加clear:both ,缺陷造成结构复杂 -->
<!-- <div class="clearfix"></div> -->
</div>
<div class="foot"></div>
</body>
</html>