代码语言：javascript复制
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<link rel="stylesheet" type="text/css" href="css/reset.css"/>
<style type="text/css">
div{
width: 600px;
height: 400px;
border:20px dashed rgba(0,0,0,.3);
padding:20px;
margin:30px;
background:url(images/king.jpg) no-repeat left top #abcdef;
}
.padding-box{
background-origin: padding-box;/*padding与content*/
}
.border-box{
background-origin: border-box;/*border与padding*/
}
.content-box{
background-origin: content-box;/*内容*/
}
</style>
</head>
<body>
<div class="padding-box"></div>
<div class="border-box"></div>
<div class="content-box"></div>
</body>
</html>
