empty-cells property in CSS

It is used to hide the border and the background on the empty cells in the table.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<style type="text/css">
table {
border-collapse: separate;
empty-cells: hide;
}
</style>
</head>
<body>
<table border="2">
<tr>
<td>mahak</td>
<td>garg</td>
</tr>
<tr>
<td></td>
<td>gupta</td>
</tr>
<tr>
<td>ashima</td>
<td></td>
</tr>
</table>
</body>
</html>