@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap');

.game15__field{
	display: table;
	border-spacing: 0.25em;
	margin-left: auto;
	margin-right: auto;
}
.game15__field__row{
	display: table-row;
}
.game15__field__block{
	display: table-cell;
	text-align: center;
	vertical-align: middle;
	
	margin: 0.25em;
	width: 4em;
	height: 4em;

	background-color: slateblue;
	border: 0.175em solid darkslateblue;
	border-radius: 12.5%;
	
	cursor: pointer;
}
.game15__field__block.zero{
	border: none;
	background: whitesmoke;
	background: radial-gradient(circle, rgba(204,204,204,1) 0%, rgba(255,255,255,0) 100%);
}
.game15__field__block:not(.zero) span{
	color: darkslateblue;
	font-size: 2em;
	font-family: 'Roboto', sans-serif;
	font-weight: bold;
	text-shadow: 0px 0px 8px lightsteelblue;
}