header
{
	display: flex;
	justify-content: space-around;
	height: 50px;
	margin: 10px auto;
}
header>span{
    font-family:Arial;
    font-weight:bold;
}

header #newgamebutton{
    display:block;
    background-color:#8f7a66;
    font-family:Arial;
    color:white;
    border-radius:10px;
}
header #newgamebutton:hover{
    background-color:#9f8b77;
}

header p{
    font-family:Arial;
    font-weight:bold;
}

#grid-container{
	width: 500px;
	height: 500px;
	background-color: #8F7A66;
	margin: 10px auto;
 	position: relative;
 	border-radius: 10px;
}

.grid-cell{
	width: 100px;
	height: 100px;
	background-color: antiquewhite;
	position: absolute;
	border-radius: 5px;
}

.number-cell{
    border-radius: 5px;
    font-family: Arial;
    font-weight:bold;
    font-size:60px;
    line-height:100px;
    text-align:center;
    position:absolute;
}