How to hide the border for specified rows of a table?

Question

I want to hide the border for a specific rows of a table.How to do it?
Any Idea?
Sample code is Highly Appreciated.

Answer 1

I use this with good results:

border-style:hidden;

It also works for:

border-right-style:hidden; /*if you want to hide just a border on a cell*/

Example:

  

    
11
    
12
    
13
  
  

    
21
    
22
    
23
  
  

    
31
    
32
    
33
  

Here is the result: