<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title></title>
<style>
.outer{
width: 500px;
height: 500px;
background-color: green;
position: relative;
}
.inner{
position: absolute;
padding: 10px;
top: 0px;
right: 0px;
bottom: 0px;
left: 0px;
background-color: orangered;
}
</style>
</head>
<body>
<div class="outer">
<div class="inner"></div>
</div>
</body>
</html>
怎样使绝对定位的子元素铺满父元素并且子元素可以设置padding
原文：http://my.oschina.net/u/1992917/blog/402326