更新时间:2020-08-13 来源:黑马程序员 浏览量:
<!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 tpye="text/css">
         body{ 
            background:#000
        }
        div{
            width: 900px;
            height: 800px;
            background:deeppink;
            display: flex;
            align-items: center;
        }
        div img{
            width: 579px;
            height: 282px;
            align-items: center;
        }
    </style>
</head>
<body>
<div>
    <img src="html.png" alt="">
</div>
</body>
</html>看下效果

<!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 tpye="text/css">
        body{
            background: #bbb;
        }
        div{
            display: table;
            width: 900px;
            height: 700px;
            background: #f3f3f3;
            display: table-cell;
            vertical-align: middle;
        }
        div img{
            width: 282px;
        }
    </style>
</head>
<body>
<div>
    <img src="html.png" alt="">
</div>
</body>
</html>
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