<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
.box {
border: 1px solid red;
/* overflow: hidden; 第二种方式清除浮动 */
}
/* 第三种方式清除浮动：伪元素清除浮动 */
.clearfix:after {
content: '';
display: block;
height: 0;
clear: both;
visibility: hidden;
}
/* 兼容ie6、7版本 */
.clearfix {
*zoom: 1;
}
.one {
width: 200px;
height: 200px;
background-color: pink;
float: left;
}
.two {
width: 200px;
height: 200px;
background-color: pink;
float: left;
margin: 0 10px;
}
.three {
width: 200px;
height: 200px;
background-color: pink;
float: left;
}
</style>
</head>
<body>
<div class="box clearfix">
<div class="one">1</div>
<div class="two">2</div>
<div class="three">3</div>
<!-- 第一种方式清除浮动 -->
<!-- <div style="clear: both;"></div> -->
</div>
</body>
</html>
