css 如何使用一个表的collapse属性

编辑代码

<!DOCTYPE html>
<html>
<head>
<style>
tr.collapse {visibility:collapse;}
</style>
</head>
<body>

<table border="1">
<tr>
<td>Peter</td>
<td>Griffin</td>
</tr>
<tr class="collapse">
<td>Lois</td>
<td>Griffin</td>
</tr>
</table>

<p><b>Note:</b> IE8 and earlier support visibility:collapse only if a !DOCTYPE is specified.</p>

</body>
</html>