body{
    background-color: bisque;
}
.card1{
    width: 200px;
    height: 300px;
    margin: auto;
    margin-top: 100px;
    position: relative;
    cursor: pointer;
}
.front, .back{
    width: 100%;
    height: 100%;
    background-image: linear-gradient(to bottom right, rgb(0, 128, 6), rgb(234, 255, 0));
    position: absolute;
    border-radius: 7%;
    box-shadow: 3px 3px 5px #777;
    transition: all 0.7s;
}
.back{
    background-image: url(uno-back.jpg);
    background-size: cover;
    background-position: center;
    transform: rotateY(180deg);
    z-index: -1;
}
.front{
    background-image: url(Uno-front.jpg);
    background-size: cover;
    background-position: center;
    z-index: 0;
}
.card1:active .back{
    z-index: 1;
    transform: rotatey(0deg);
}
.card1:active .front{
    transform: rotatey(180deg);
}
@font-face {
    font-family: "yekan";
    src: url(Yekan.woff);
}
#guide{
    font-family: "yekan";
    text-align: center;
    margin-top: 30px;
    font-size: 20px;
    cursor: pointer;
}