zoukankan html css js c++ java

html垂直居中

参考于http://www.cnblogs.com/yugege/p/5246652.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>index</title>
    <style>
        html,body {
            width: 100%;
            height: 100%;
            margin: 0;
            padding: 0;
        }
        .content {
            width: 300px;
            height: 300px;
            background: orange;
            margin: 0 auto; /*水平居中*/
            position: relative; /*脱离文档流*/
            top: 50%; /*偏移*/
            margin-top: -150px; 
        }
    </style>
</head>
<body>
    <div class="content"></div>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>index</title>
    <style>
        html,body {
            width: 100%;
            height: 100%;
            margin: 0;
            padding: 0;
        }
        .content {
            width: 300px;
            height: 300px;
            background: orange;
            margin: 0 auto; /*水平居中*/
            position: relative; /*脱离文档流*/
            top: 50%; /*偏移*/
            transform: translateY(-50%);
        }
    </style>
</head>
<body>
    <div class="content"></div>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>index</title>
    <style>
        html,body {
            width: 100%;
            height: 100%;
            margin: 0;
            padding: 0;
        }
    
        body {
            display: flex;
            align-items: center; /*定义body的元素垂直居中*/
            justify-content: center; /*定义body的里的元素水平居中*/
        }
        .content {
            width: 300px;
            height: 300px;
            background: orange;        
        }
    </style>
</head>
<body>
    <div class="content"></div>
</body>
</html>

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原文地址：https://www.cnblogs.com/zhanqun/p/5249498.html