图片垂直水平居中

图片水平居中

<style>
        *{margin: 0; padding: 0;}
        .demo{
            width: 400px;
            height: 300px;
            border: 1px dashed #ccc;
            display: table-cell; 
            vertical-align: middle;
            text-align: center;
        }
    </style>
    <div class="demo">
    　　<img src="https://img.bazi5.com/d/2020/10/5f83a52c719e4.png">
    </div>