.tateti td 
{
	height: 200px;
	width: 200px;
}

table, th, td {
  border: 1px solid black;
}

.disable
{
	pointer-events:none;
}

.icon{
	pointer-events: auto;
}

.o-icon
{
	background: url("../img/o-icon.png");
	background-repeat: no-repeat;
  	background-position: center;
}

.x-icon
{
	background: url("../img/x-icon.png");
	background-repeat: no-repeat;
  	background-position: center;
}