style.css

.game-table {
    width: 100%; height: 100%; background: green; padding: 4em;
}

.slot, .card, .card-won {
    width: 10em; height: 14em;
}

.slot { 
    margin: .25em;
    position: relative; display: inline-block;
}

.card, .card-won {
    margin-left: -5em; margin-right: -5em;
    margin-top: -7em; margin-bottom: -7em;
    display: inline-block; position: absolute; top: 50%; left: 50%;
    border-radius: .625em; background: white; border: solid black 2px;
    font-size: small;
    transition: .25s;
}

.slot, .card-chosen, .card-won { font-size: large; }

.card-won {
    opacity: 0;
    transform: translateY(100%) scale(.8);
    transition: .5s;
}

.dot {
    width: 2.5em; height: 2.5em; 
    margin: -1.25em; border-radius: 50%; position: absolute;
}

.dot-0 { top:  3em; left: 3em; background: red; }
.dot-1 { top:  7em; left: 3em; background: gold; }
.dot-2 { top: 11em; left: 3em; background: blue; }
.dot-3 { top:  3em; left: 7em; background: darkorange; }
.dot-4 { top:  7em; left: 7em; background: lime; }
.dot-5 { top: 11em; left: 7em; background: purple; }