ヘルプ:Page styles/tocstyles.css

/*

* Table demo #1 (no left or right outger borders)
*/

.__tabledemo-1 { border-collapse: collapse; border-top: 1px solid; border-bottom: 1px solid; margin-left: auto; margin-right: auto; } .__tabledemo-1 th { border-bottom: 1px solid; text-align: center; } .__tabledemo-1 th:nth-child(n+2), .__tabledemo-1 td:nth-child(n+2) { border-left: 1px solid; }