前端学习（108）：嵌套清除浮动 after类

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>清除浮动</title>
    <style>
    #box1{
        width: 200px;border: 5px black solid;
    }
    #box2{
       width: 100px;;height: 200px;background: red;float: left;
    }
    .clear::after{content: '';clear: both;display: block;}
    </style>
</head>
<body>
    <div id="box1" class="clear">
            <div id="box2"></div>
            
    </div>
    aaaaa
</body>
</html>

运行结果

来源：CSDN

作者：你知道歌谣吗？

链接：https://blog.csdn.net/weixin_43392489/article/details/103516525

标签

前端