html{overflow-y:scroll}header a{text-decoration:none;padding:.5rem;opacity:.8}header a[aria-current=true]{opacity:1;-webkit-text-decoration:gray underline 2px;text-decoration:gray underline 2px}.chessboard-wrapper{max-width:400px;margin:1.5rem auto}.table-row:nth-child(2n){background-color:#f9fafb}.dark .table-row:nth-child(2n){background-color:rgba(55,65,81,.3)}.dark thead{border-bottom-color:#4b5563}