#cnblogs_post_body p {
margin:10px;
text-indent:2em;
}
<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <style type="text/css">
        .box {
        	position:relative;
            width: 600px;
            height: 600px;
            background:#eee;
            
        }
        .inner{
        	position:absolute;
        	left:50%;
        	top:50%;
        }
        .inner .img1{
        	visibility: hidden;
        }
        .inner .img2{
        	position:absolute;
        	left:-50%;
        	top:-50%;
        }
    </style>
</head>
<body>
	<div class="box">
		<div class="inner">
			<img class="img1" src="https://nec.netease.com/img/s/1.jpg" />
			<img class="img2" src="https://nec.netease.com/img/s/1.jpg" />
		</div>
	</div>
</body>
</html>
