<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css">
*{
padding:0;
margin: 0;
}
.box{
margin:30px auto;
width:400px;
height:400px;
line-height:400px;
border: 1px solid #bbb;
}
.box img{
display:inline-block;
width:100%;
vertical-align:middle;
}
</style>
</head>
<body>
<div class="box">
<img src="finish.png">
</div>
</body>
</html>
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