为什么我的list-style-type起不了作用呢？

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN">
<html lang="en">
<head>
<style type="text/css">
<!--
* {margin=0px;padding:0px;}
body { width:800px;
margin:0 auto;
font:12px sans-serif;
border:1px solid #5F9EA0;
}
#header {width:800px;
border:0px solid blue;
text-align:center;
margin:0px;padding:0px;
}
#globalnav {

list-style-type:none; /*这里我定义了没有符号呢 */
height:25px;
width:780px;
color:#000;
padding:10px;
background-color:#B0C4DE;
}
#globalnav li {float:left;
margin:1px;
}
#globalnav li a{

background:yellow;

}
#globalnav li a:hover{
color:#000;
background-color:#fff;
}
#content {
height:300px;
}
#content h2 {
font-size: 16px;
padding: 1px 2px 0 5px;
}
#content p { text-indent: 2em;}
#footer {
height:50px;
font:14px bold;
background-color:#B0C4DE;
text-align:center;
line-height:1em;
overflow:hidden;
}
-->
</style>
<title>I must be successfuy!</title>
</head>
<body>
<div id="header"><img src="head.jpg" alt="logo"></div>
<div id="globalnav"><ul><li><a href="#">index</a></li><li>movie</li></ul></div>
/*这里还是不起作用呢 */
<div id="content"><h2>ccontent</h2><p>you're far to kind</p></div>
<div id="footer"><p>love | sad | died | grow | hate </div>

</body>
</html>

为什么会这样呢？