.table_border
{td-vertical-align: top; text-align: center;}
//border-left:1px dotted black; border-right:1px dotted black; border-top:1px dotted black; border-bottom:1px dotted black;
.upper_top
{border-left:1px solid black; border-right:1px solid black; border-top:1px solid black;}
.lower_bottom
{border-left:1px solid black; border-right:1px solid black; border-bottom:1px solid black;}
.middle_block
{border-left:1px solid black; border-right:1px solid black;}
.block
{border-left:1px solid black; border-right:1px solid black;  border-top:1px solid black; border-bottom:1px solid black;}