*, *:before, *:after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
body {
    font-size: 18px;
    font-family: sans-serif;
    height: 100vh;
    overflow-x: hidden;
}
.container {
    display: flex;
}
.title {
    width: 50%;
    height: 100vh;
    background: #000;
    position: relative;
}
.presentation {
    position: absolute;
    color: #f1f1f1;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
}
.presentation p {
    margin-top: 20px;
}
h1 {
    font-size: 80px;
    display: block;
    width: 100%;
}
.bouton {
    background-color: rgb(76,99,175);
    border: none;
    color: white;
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
}

.boxCartes{
    display: block;
    position: relative;
    width: 50%;
    height: 100vh;
}
.cards, .stack {
    transform-style: preserve-3d;
}
.cards {
    display: grid;
    grid-template: repeat(2, 216px) / repeat(2, 324px);
    grid-gap: 27px;
    position: absolute;
    top: 27%;
    left: 14%;
    transform:rotateX(45deg) rotateZ(45deg);
    transition: 1s ease;
}

.boxCartes:hover .cards{
	transform:rotateX(0deg) rotateZ(0deg);
}

.stack {
    display: block;
    position: relative;
}
.contents {
    font-size: 13.5px;
    line-height: 1.25;
}
.stack .contents {
    color: #fff;
}
.contents h2 {
    color: #aff;
    font-size: 36px;
    font-weight: 400;
    margin-bottom: 4.5px;
}
.contents span {
    margin-right: 13.5px;
}
.card {
    background-image: url("pic.jpg");
    background-size: 200% 200%;
    padding: 13.5px;
    position: absolute;
    width: 100%;
    height: 100%;
}