这段代码有什么问题？为什么文本没有加到div上
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>无标题文档</title>
<style type="text/css">
.message{
width:200px;
height:100px;
background-color:#CCC;}
</style>
</head>
<body>
<div class="message">
</div>
<script type="text/javascript">
var d=document.getElementsByTagName("div");
var newText=document.createTextNode("i love javascript");
d.appendChild(newText);
</script>
</body>
</html>
