实现盒子居中的方式[经典面试题]

时间：2019-12-30 21:14:02 阅读：84 评论：0 收藏：0 [点我收藏+]

标签：absolute title char image 三种方式 tom pos 面试 device

        * {
            margin: 0;
            padding: 0;
        }

        .box1 {
            float: left;
            position: relative;
            width: 200px;
            height: 200px;
            border: 1px solid red;
        }

        .son1 {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
        }

        .box2 {
            /* float: left; */
            display: table-cell;
            text-align: center;
            vertical-align: middle;
            width: 200px;
            height: 200px;
            border: 1px solid red;
        }
        .son2 {
            display: inline-block;
        }
        .box3 {
            position: relative;
            width: 200px;
            height: 200px;
            border: 1px solid red;
            margin-top: -1px;
        }
        .son3 {
            width: 30px;
            height: 30px;
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            margin: auto;

        }

上面是css代码,放在哪里就不用多说了,接着是html

<!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>实现盒子居中的三种方式</title>
</head>

<body>
    <div class="box1">
        <div class="son1">盒子1</div>
    </div>
    <div class="box2">
        <div class="son2">盒子2</div>
    </div>
    <div class="box3">
        <div class="son3">盒子3</div>
    </div>
</body>

</html>