FireFoxで表示がおかしいのでメモる

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html lang="ja">
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
	<title></title>
</head>
<body>
<style type="text/css">
<!--
*
{
    margin: 0px;
    padding: 0px;
}
div#n
{
    border-top: 1px solid gray;
    margin: 0;
    padding: 0;
    clear:both;
}
div#n > a
{
    padding: 2px 8px;
    border-right: 1px solid gray;
    margin: 0;
    float:left;
    font-size: 14px;
	font-family: "Tahoma", "MS UI Gothic", "Osaka";
}
div#n > a:hover
{
    background-color: #ccc;
}
//-->
</style>
<div id="n">
<a>a</a>
<a>i</a>
<a>u</a>
<a>e</a>
<a>o</a>
</div><br style="clear:both">
<div style="clear:both;width:100%;border-top: 1px solid gray;">ssssssssssssssss</div>
</body>
</html>