/*
    element {}
    .class {}
    element.class {}
    #id {}
    selector innerSelector {}
*/

table.board { border-spacing: 6px; padding: 9px; }
table.wip   { background-color: #dbb; }
table.goal  { background-color: #cec; }
table.board td { 
    width: 150px; height: 150px; border-radius: 15px;
    font-size: 60pt; text-align: center; vertical-align: middle;
}
.board .tile {
    border: 3px outset;
    background-color: #fff;
    cursor: pointer;
}
.board .blank {
    opacity: 0.0;
}