header{
	display: block;
	margin: 0 auto;
	width: 100%;
	text-align: center;
}

header h1{
	font-family: arial;
	font-size: 40px;
	font-weight: bold;
	margin: 10px auto;
}

header #newgamebutton{
	display: block;
	margin: 0px auto;
	
	width: 100px;
	padding: 10px 10px;
	background-color: #8f7a66;
	
	font-family: arial;
	color: white;
	
	border-radius: 10px;
	
	text-decoration: none;
}

header #newgamebutton:hover{
	background-color: #9f8b77;
}

header p{
	font-family: arial;
	font-size: 25px;
	margin: 10px auto;
}

#grid-container{
	width: 460px;
	height: 460px;
	padding: 20px;
	
	margin: 10px auto;
	background-color: #bbada0;
	background-repeat: no-repeat;
	background-size: 100% 100%;
	background-image: url(../images/back.jpg);
	
	border-radius: 10px;
	position: relative;
}

.grid-cell{
	width: 100px;
	height: 100px;
	border-radius: 6px;
	background-color: #ccc0b3;
	opacity: 0.4;
	
	position: absolute;
}

.number-cell{
	border-radius: 6px;
	
	font-family: arial;
	font-weight: bold;
	font-size: 60px;
	line-height: 100px;
	text-align: center;
	
	position: absolute;
}