CSS float（浮动）塌陷与clearfix（清除float属性）案例 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .head{
            width: 100%;
            border:1px solid red;
        }
        .head .head1{
            width: 500px;
            height: 100px;
            
            float: left;
        }
        .head .head2{
            width: 500px;
            height: 100px;
            background-color: blue;
            float: right;
        }
         .content{
            width: 100%;
            height: 500px;
            background-color: lightpink;
        }
        /*clearfix属性默认清楚功能 aftet追加内容*/
        .clearfix:after{
            /*#设置块标签*/
            display: block;
            /*#清除左右浮动*/
            clear: both; 
            /*#追加内容空*/
            content: ""
        }

    </style>
</head>
<body>

<div class="head clearfix">搜索框
    <div class="head1">左搜索框部分</div>
    <div class="head2">右搜索框部分</div>
</div>
<div class="content">主页内容</div>

</body>
</html>

 

posted @ 2022-05-28 21:19  呼长喜  阅读(39)  评论(0)  编辑  收藏  举报