* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

h1 {
    text-align: center;
    font-family: 'Marvel', sans-serif;
    font-size: 5.5em;
    color: rgb(12, 11, 11);
    margin-bottom: 20px;;
}

body {
    display: flex;
    height: 90vh;
    justify-content: center;
    background: #f2efee; 
    align-items: center;
    flex-direction: column;
}

p {
    font-family: 'Marvel', sans-serif;
    margin-top: 30px;
    font-size: 3.5em;
    color: rgb(0, 0, 0);

}

section { 
    display: grid;
    grid-template-columns: repeat(4, 9rem);
    grid-template-rows: repeat(4,9rem);
    grid-gap: 1rem;
    perspective: 1000px;
}

.card {
    position: relative;
    transform-style: preserve-3d;
    transition: 1s;
    box-shadow: black 15px 15px 15px;
}

.cardFace, .cardBack {
    width: 100%;
    height: 100%;
    position: absolute;
    pointer-events: none;
}

.cardBack {
    background-image: url(images/marvellogo.jpeg);
    background-repeat: none;
    background-position: center;
    background-size: cover;
    backFace-visibility: hidden;
}

.cardFlipper {
    transform: rotateY(-180deg);
    
}

#time {
    margin-top: 20px;
}