Body{background-color:slateblue}
.square {
    border: 1px solid black;
    width: 100px;
    height: 100px;
    display: inline-block;
    text-align: center;
    background-color:red;
	font-size:95px ;
	line-height: 80px;
}

.square.x {
	color: silver;
}

.square.o {
	color: gold;

}