lovecoding
/
W250913


			
				
					
						
						
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							<!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>
        body{
            margin: 0;
        }
        .box1{
            max-width: 600px;
            margin: 100px auto;

        }
        .box {
            /* max-width: 600px; */
            /* height: 300px; */
            /* padding-top: 300px; */
            /* padding 或者 margin 使用百分比 是相对于父元素的宽度 */
            padding-top: 62.5%;
            /* background-color: pink; */
            background-image: url("./img/img1.jpg");
            background-size: 100% 100%;
        }
    </style>
</head>

<body>
    <div class="box1">
        <div class="box">
        </div>
    </div>

</body>

</html>