*{
    font-family: 'Raleway', sans-serif;
}
body{
    background-image: url("images/back.png");
}
.CARd{
    position: relative;
    transform-style: preserve-3d;
}
.CARd .face{
    position: absolute;
    width: 90%;
    height: 100%;
    transform-style: preserve-3d;
    transition: 1s ease-in-out;
    backface-visibility: hidden;
    transform: perspective(800px) rotateY(0deg);
}
.CARd .face.front{
    background:rgba(136, 136, 136, 0.521);
}
.CARd:hover .face.front{
    transform: perspective(800px) rotateY(180deg);
}
.CARd .face.back{
    background:rgba(136, 136, 136, 0.521);
    color: #fff;
    transform: perspective(800px) rotateY(180deg);
}
.CARd:hover .face.back{
    transform: perspective(800px) rotateY(360deg);
}