style.css

* {
	font-family: Helvetica, Arial, sans-serif; 
}

body div#board {
	margin: 30px auto 0;
	padding: 1px;
	border: 1px solid #999;
}

body div#board:hover {
	cursor: pointer;
}

body div#board div.piece {
	float: left;
	width: 24px;
	height: 20px;
	margin: 1px;
	padding-top: 4px;
	background-color: #bbb;
	color: #666;
	text-align: center;
}

body div#board div.piece:hover {
	background-color: #ccc;
}

body div#board div.piece:active {
	background-color: #aaa;
}

body div#board div.piece span { }

body div#board div.piece div.boom {
	color: #ee3333;
	font-size: 24px;
	position: relative;
	left: -25px;
	top: -25px;
}

body div#content div.button {
	height: 35px;
	padding-top: 10px;
	color: #fff;
	font-weight: bold;
	font-size: 24px;
	border: 1px solid #dedede;
	-webkit-border-radius: 10px;
	-moz-border-radius: 10px;
	border-radius: 10px;
	margin: 20px auto 30px;
	background-color: #bbb;
}

body div#content div.button:hover {
	cursor: pointer;
	background-color: #ccc;
}

body div#content div.button:active {
	background-color: #aaa;
}

body div#content div.button#helpButton {
	width: 45px;
}

body div#content div.button#newGameButton {
	width: 150px;
}

body div#content div.button p {
	text-align: center;
}