.tbl{ width:1000px; margin:auto; margin-top:50px; margin-bottom:50px; background-color:#ddd; border-collapse:separate;}
.tbl td{ background-color:White; height:30px; text-align:center;}
.tbl>tbody>tr:nth-child(1)>td{ background-color:#eee}
.tbl>tbody>tr td:nth-child(1){ color:#aaa}