今天做个表格，需要显示黑体内边框，弄了半天弄不出来，怒了！直接拼揍
<title>无标题文档</title>
<style type="text/css">
table{ border-top:black 1px solid; border-left:black 1px solid;}
table td{ border-bottom:black 1px solid; border-right:black 1px solid;}
</style>
</head>
<body>
<table width="500px" height="200px" cellpadding="0" cellspacing="0">
<Tr>
<Td>fd</Td>
<Td>fd</Td>
<Td>fd</Td>
</Tr>
<Tr>
<Td>fd</Td>
<Td>fd</Td>
<Td>fd</Td>
</Tr>
</table>
</body>