.product_table2
{
    border-right:1px solid black;
    border-top: 1px solid black;
}

.product_table2 th
{
    border-left: 1px solid black;
    border-bottom: 1px solid black; 
    background-color: #99ccff;    
}        

.product_table2 td
{
    border-left:1px solid black;
    border-bottom: 1px solid black;
}