<html><body><h4>Empty cell without border</h4><tableborder="1"><tr><td>cell 1</td><td></td></tr><tr><td>cell 3</td><td>cell 4</td></tr></table><h4>Empty cell with border</h4><tableborder="1"><tr><td>cell 1</td><td> </td></tr><tr><td>cell 3</td><td>cell 4</td></tr></table></body></html>
Play with the code:
See working example:
Explanation:
Cell 2 is empty and it has no border. If you want to create a border in an empty cell, you can insert" " (white space) between the <td></td> tags.