* {
	margin:0;
	padding:0;
	background-color:grey;
}

.gameboard {
	display:grid;
	    grid-template:repeat(3, 1fr)/repeat(3, 1fr);
	    gap:5px;
	    background-color:red;
	    width:40%;
	height:70vh;	
	margin-top:3%;
	    margin-left:auto;
	    margin-right:auto;
	    border:1px solid black;
}

button {
    background-color:white;
      background-size: contain;
      
  background-repeat: no-repeat;
}