HTML中div嵌套div的margin不起作用的解决方法

1、让父元素生成一个block formating context（块级格式化上下文，可自行百度了解），以下属性可以实现

float: left/right

position: absolute

display: inline-block

overflow: hidden/auto

2、给父元素添加border或者padding

@ www.haoshilao.net以方法一的overflow:hidden为例：

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<!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 type="text/css">
        *{
            margin: 0;
            padding: 0;
        }
        body{
            width: 100%;
            height: 100%;
            background-color: dodgerblue;
        }
        .box{
            width: 300px;
            height: 300px;
            margin: 30px;
            background-color: gray;
            overflow: hidden;
        }//@ www.xuepai.net
        .box .child{
            width: 200px;
            height: 200px;
            margin: 50px;
            background-color:darkturquoise;
        }
    </style>
</head>
<body>
    <div class="box">
        <div class="child">
 
        </div>
    </div>
</body>
</html>

 

posted @ 2026-01-06 21:18  zxcva  阅读(10)  评论(0)    收藏  举报