需要如下效果：
html代码：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<style type="text/css">
#box {
width: 1000px;
height: 900px;
background-color: sandybrown;
position: absolute;
}
#box>p {
position: absolute;
right: 0;
bottom: 0;
color: salmon;
}
</style>
</head>
<body>
<div id="box">
<p>
hello 过年好！
</p>
</div>
</body>
</html>