<html>
<head>
<style>
table, td {
border: 1px solid black;
}
tr.collapse {
visibility: collapse;
}
</style>
</head>
<body>
<h1>The visibility Property</h1>
<table>
<tr>
<td>Peter</td>
<td>Griffin</td>
</tr>
<tr class="collapse">
<td>Lois</td>
<td>Griffin</td>
</tr>
</table>
</body>
</html>