.scene {
    width: 280px;
    height: 320px;
    margin: 0 auto;
    perspective: 600px;
}
.fl-card, .fl-card2 {
    width: 100%;
    height: 100%;
    transition: transform 1s;
    transform-style: preserve-3d;
    cursor: pointer;
    position: relative;
}
.fl-card.is-flipped, .fl-card2.is-flipped {
    transform: rotateY(180deg);
}
.fl-card__face {
    position: absolute;
    width: 100%;
    height: 100%;
    line-height: 320px;
    text-align: center;
    font-weight: bold;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}
.fl-card__face--front {
    background: #FFFF99;
}
.fl-card__face--back {
    background: #CCFFFF;
    transform: rotateY(180deg);
}
.dis-n { display: none; }

.col-gr { color: green; }
.col-red { color: red; }