controls whether empty cells are rendered or not

empty-cells: ***;

Browser
Firefox Opera

The empty-cells property controls whether empty cells are rendered or not.

You can use this property when the "separate" value is set to the border-collapse property.

This property can apply to the TABLE element.

table {
border: 2px #000000 solid;
empty-cells: hide;
}

Property Value Explanation
empty-cells show borders are displayed around empty cells (default)
(in MSIE, borders are not displayed)
hide borders are not displayed around empty cells

Example

<html>
<head>
<title>TAG index</title>

<style type="text/css">

table {
width: 600px;
border: 2px #2b2b2b solid;
border-collapse: separate;
margin-bottom: 20px;
}
td, th {
border: 2px #2b2b2b solid;
}

#example1 {
empty-cells: show;
}
#example2 {
empty-cells: hide;
}

</style>

</head>
<body>

<table id="example1">
<tr>
<th colspan="2">Borders are displayed around empty cells</th>
</tr>
<tr>
<td>Cell A</td>
<td></td>
</tr>
<tr>
<td></td>
<td>Cell B</td>
</tr>
</table>

<table id="example2">
<tr>
<th colspan="2">Borders are not displayed around empty cells</th>
</tr>
<tr>
<td>Cell A</td>
<td></td>
</tr>
<tr>
<td></td>
<td>Cell B</td>
</tr>
</table>

</body>
</html>
Output
Borders are displayed around empty cells
Cell A
Cell B
Borders are not displayed around empty cells
Cell A
Cell B