th border « Tags « HTML / CSS

1.Set table header border to be 1px solid black, its width to 6em
2.Set table border for table header
3.Table header with border border-left: 1px solid #f4f4f4; border-bottom: solid 2px #fff; border-left: 1px solid #EDC9C9; border-bottom: 1px solid #FFF; border-left: 1px solid #fff; border: 1px solid black; border-bottom-width: 1px; border-bottom-style: solid; border-bottom-color: #CDC1A7;, tfoot td border: thin solid black;text-align: center;font-weight: bold;
14.thead th {border-bottom: 1px solid #333; text-align: center; font-weight: bold;}[scope="col"] {border-bottom: 1px solid gray;}