* {
    border: 0;
    outline: 0;
    margin: 0;
    padding: 0;
}

body {
    background-color: #000634;
}

.presentation {
    width: 100vw;
    height: 100vh;
    box-sizing: border-box;
    position: relative;
    overflow: hidden;
}

.presentation img {
    -o-object-fit: cover;
    object-fit: cover;
    -o-object-position: center center;
    object-position: center center;
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
}

/* Fading animation */
.fade {
    animation-name: fade;
    animation-duration: 1.5s;
}

@keyframes fade {
    from {
        opacity: .4
    }

    to {
        opacity: 1
    }
}