Yes, there is. You could use CSS to get this effect done.
Just open Notepad and paste this code into it:
Save it as styles.css near your index.html file.
border-top: 1px solid #00FFFF;
border-left: 1px solid #00FFFF;
border-right: 1px solid #00FFFF;
border-bottom: 1px solid #00FFFF;
The place the following code in your <HEAD> section:
That should get the trick done. You have now given each cell it's own green border, in stead of using the <td> that contained your table-structure. This means you should remove the bgcolor=green attribute from the overlapping <td>
<link rel="stylesheet" type="text/css" href="styles.css">
If you encounter any problems implementing this just say so, and I will see if I can help you get those out of the way .