Module:Chessboard/sandbox/styles.css

.chessboard table {
	font-size: 88%;
	border: 1px #c8ccd1 solid;
	padding: 0;
	margin: auto;
}

.chessboard table tr {
	vertical-align: middle;
}

.chessboard table td {
	padding: 0;
	vertical-align: inherit;
	text-align: center;
}

/* td containing the chess pieces should not center aligned, causes issues in Timeless */
.chessboard table td[rowspan] {
	text-align: unset;
}

.chessboard .chess-pieces div:not(.pcs-image-wrapper) {
	position: absolute;
	z-index: 3;
}