style.css

@charset "UTF-8";
/* CSS Document */

* {
	margin: 0px;
	padding: 0px;
	font-family: Gotham, "Helvetica Neue", Helvetica, Arial, "sans-serif";
	font-size:30px;
}

body {
	width: 960px;
	min-height: 700px;
}

#header, #board {
	text-align: center;
}

#board {
	margin: 75px auto;
}


#a1, #a2, #a3, #b1, #b2, #b3, #c1, #c2, #c3 {
	width: 100px;
	height: 100px;
	display: inline-block;
}

#a1, #a2, #a3 {
	border-bottom: dashed 2px black;
}

#b1, #b2, #b3 {
	border-bottom: dashed 2px black;
}

#a2, #b2, #c2 {
	border-left: dashed 2px black;
	border-right: dashed 2px black;
}

.red {
	background-color: red;
	background-size: 100px;
}

.blue {
	background-color: blue;
	background-size: 100px;
}

#again {
	font-size:14px;
}