table
{
text-align: center;
border-top: solid 1px #000000;
border-right: solid 1px #000000; 
}

TD {
border-left: solid 1px #000000;
border-bottom: solid 1px #000000; 
}

table.diff
{
text-align: center;
border-top: solid 0px #000000;
border-right: solid 0px #000000; 
}

td.diff
{
border-left: solid 0px #000000;
border-bottom: solid 0px #000000; 
}