内层div相对于外层div水平垂直居中以及外层div相对body水平垂直居中

Posted on 2021-02-01 09:47  猫头唔食鱼  阅读(172)  评论(0)  编辑  收藏  举报 
<!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>
        /* 外层div在body水平垂直居中 */
        .outter {
            position: fixed;
            top: 50%;
            left: 50%;
            -webkit-transform: translate(-50%, -50%);
            -moz-transform: translate(-50%, -50%);
            transform: translate(-50%, -50%);
            border: 1px solid #000;
            width: 500px;
            height: 500px;
        }
        /* 内层div相对于外层div水平垂直居中 */
        .inner {
        width: 200px;
        height: 200px;
        position: absolute;
        top: 50%;
        left: 50%;
        margin: -100px 0 0 -100px;
        border: 1px solid #000;
    }
    </style>
</head>

<body>
    <div class="outter">
        <div class="inner"></div>
    </div>
</body>

</html>