@charset "utf-8";
.header{display:block;margin:0px auto;width:100%;text-align:center;}
.header h1{font-family:Arial;font-size:30px;font-weight:bold;}
.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:20px;margin:5px auto;}

/* grid-container */
#grid-container{width:460px;height:460px;padding:50px;margin:5px auto;background-color:#bbada0;
border-radius:10px;position:relative;}
.grid-cell{width:100px;height:100px;border-radius:6px;background-color:#ccc0b3;
position:absolute;}
.number-cell{border-radius:6px;width:100px;height:100px;font-family:Arial;font-weight:bold;font-size:60px;line-height:100px;text-align:center;
position:absolute;}