table.unpx tr.gris {
   font-family: Verdana, Arial, "Century Gothic",  sans-serif;
   font-size: 12px;
   color: lightgray;
}

table.unpx tr.azul {
   font-family: Verdana, Arial, "Century Gothic",  sans-serif;
   font-size: 12px;
   color: blue;
}

table.unpx tr.negro {
   font-family: Verdana, Arial, "Century Gothic",  sans-serif;
   font-size: 12px;
   color: black;
}