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绝对定位使盒子居中显示的三种方式

2022-06-12 03:25:00 【stay calm~】 

<!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>
        *{
            margin: 0;
            padding: 0;
        }
        body{
            height: 8000px;
        }
        div{
            width: 300px;
            height: 200px;
            background-color: aqua;
            position: absolute;
            /*四则运算 支持+ - 运算符符号前后写空格  */
            top: calc(50% - 100px);
            left: calc(50% - 150px);
        }

        .box{
            width: 100px;
            height: 100px;
            background-color: red;
            position: absolute;
            top:50%;
            margin-top: -50px;
            left:50%;
            margin-left: -50px;
        }
        .box2{
            width: 80px;
            height: 80px;
            background-color: blueviolet;
            margin: auto;
            position: absolute;
            top: 0;
            bottom: 0;
            left: 0;
            right: 0;
        }
    </style>
</head>
<body>
    <div>方法一</div>
    <div class="box">方法二</div>
    <div class="box2">方法三</div>
</body>
</html>

 

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本文为[stay calm~]所创，转载请带上原文链接，感谢
https://blog.csdn.net/qq_50352386/article/details/125239565

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