@import url('https://fonts.googleapis.com/css?family=Iswald:400,700');

:root {
    --level-one: translateZ(3rem);
    --level-two: translateZ(6rem);
    --level-three: translateZ(9rem);
    
    --fw-normal: 400;
    --fw-bold: 700;
    
    --clr: #b7c9e5;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
}

body {
    height: 100vh;
    display: grid;
    place-items: center;
    font-family: 'Oswald', sans-serif;
    background-image: radial-gradient(#404, #000);
}

.container {
    width: 400px;
    animation: mymove 10s linear infinite;
    transform-style: preserve-3d;
}

@keyframes mymove {
    to {transform: rotate3d(2,2,0,360deg);}
}

.card {
    height: 400px;
    text-align: center;
    position: relative;
    padding: 5em;
    transition: transform 3s;
    transform-style: preserve-3d;
}

/*
.container:hover .card {
    transform: rotate3d(2,1,1,90deg);
}
*/

.front, .back {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 5em 3em;
    backface-visibility: hidden;
    transform-style: preserve-3d;
    display: grid;
    align-content: center;
}

.front {
    background-color: var(--clr);
    background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/308367/fair.jpg);
    background-size: cover;
    background-blend-mode: overlay;
    color: #333;
}

.front::before {
    content: '';
    position: absolute;
    --spacer: 1em;
    top: var(--spacer);
    bottom: var(--spacer);
    left: var(--spacer);
    right: var(--spacer);
    border: 3px solid currentColor;
    transform: var(--level-one);
}

.title {
    font-size: 3.5rem;
    transform: var(--level-three);
    order: 2;
    text-transform: uppercase;
}

.subtitle {
    transform: var(--level-two);
    text-transform: uppercase;
    letter-spacing: 4px;
    font-size: .75rem;
    font-weight: var(--fw-bold);
    opacity: .7;
}

.body {
    transform: var(--level-two);
    font-weight: var(--fw-normal);
    font-size: 1.5rem;
    line-height: 1.6;
}

.back {
    transform: rotateY(0.5turn);
    color: var(--clr);
    background: #333;
}