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盒子水平垂直居中方法匯總

更新時間:2021年09月20日16時01分來源:傳智教育瀏覽次數:

讓盒子水平垂直居中的方法有哪些？有以下6中方式：

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盒子水平垂直居中方案1：利用定位(常用方法,推薦)

<!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>盒子居中方法1</title>
    <style>
        .parent {
            position: relative;
            width: 500px;
            height: 500px;
            border: 1px solid #000;
        }
        .child {
            position: absolute;
            top: 50%;
            left: 50%;
            margin-top: -50px;
            margin-left: -50px;
            background-color: pink;
            width: 100px;
            height: 100px;
            border: 1px solid #000;
        }
    </style>
</head>
<body>
    <div class="parent">
        <div class="child">子元素</div>
    </div>
</body>
</html>

盒子水平垂直居中方案2：利用 margin:auto;

<!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>盒子居中方案2-黑馬高級web前端培訓http://web.itheima.com</title>
    <style>
        .parent {
            position: relative;
            width: 500px;
            height: 500px;
            border: 1px solid #000;
        }
        .child {
            position: absolute;
            margin: auto;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            width: 100px;
            height: 100px;
            border: 1px solid #999;
            background-color: pink;
        }
    </style>
</head>
<body>
    <div class="parent">
        <div class="child">子元素</div>
    </div>
</body>
</html>

盒子水平垂直居中方案3：利用 display:table-cell

<!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>盒子居中方案3-黑馬高級web前端培訓http://web.itheima.com</title>
    <style>
        .parent {
            width: 500px;
            height: 500px;
            border: 1px solid #000;
            display: table-cell;
            vertical-align: middle;
            text-align: center;
        }
        .child {
            width: 100px;
            height: 100px;
            border: 1px solid #999;
            background-color: red;
            display: inline-block;
        }
    </style>
</head>
<body>
    <div class="parent">
        <div class="child">子元素</div>
    </div>
</body>
</html>

盒子水平垂直居中方案4：利用display：flex;設置垂直水平都居中

<!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>盒子居中方案4-黑馬高級web前端培訓http://web.itheima.com</title>
    <style>
        .parent {
            width: 500px;
            height: 500px;
            border: 1px solid #000;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .child {
            width: 100px;
            height: 100px;
            border: 1px solid #999;
            background-color: red;
        }
    </style>
</head>
<body>
    <div class="parent">
        <div class="child">子元素</div>
    </div>
</body>
</html>

盒子水平垂直居中方案5：計算父盒子與子盒子的空間距離

<!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>盒子居中方案5-黑馬高級web前端培訓http://web.itheima.com</title>
    <style>
        .parent {
            width: 500px;
            height: 500px;
            border: 1px solid #000;
        }
        .child {
            width: 100px;
            height: 100px;
            border: 1px solid #999;
            margin-top: 200px;
            margin-left: 200px;
            background-color: red;
        }
    </style>
</head>
<body>
    <div class="parent">
        <div class="child">子元素</div>
    </div>
</body>
</html>

盒子水平垂直居中方案6：利用transform

<!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>盒子居中方案6-黑馬高級web前端培訓http://web.itheima.com</title>
    <style>
        .parent {
            position: relative;
            width: 500px;
            height: 500px;
            border: 1px solid #000;
        }
        .child {
            position: absolute;
            width: 100px;
            height: 100px;
            border: 1px solid #999;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            background-color: red;
        }
    </style>
</head>
<body>
    <div class="parent">
        <div class="child">子元素</div>
    </div>
</body>
</html>