字体和文本样式/拓展-标签水平居中.html

<!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>
        div {
            width: 300px;
            height: 300px;
            background-color: pink;
            /* 此设置使标签居中 非常常用! */
            margin: 0 auto;
        }
    </style>
</head>
<body>
    <div></div>
</body>
</html>