下面代码为什么margin-bottom以及margin-right不起作用啊？
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>填充</title>
<style type="text/css">
#box1,#box2{
width:100px;
height:100px;
border:1px solid red;
/*display:inline;*/
}
#box2{
margin:5px 15px 10px 15px;
}
</style>
</head>
<body>
<div id="box1">盒子1
<div id="box2">盒子2</div>
</div>
</body>
</html>
