html,
body {
    margin: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: black;
}

body {
    display: flex;
    align-items: center;
    justify-content: center;
}

main {
    width: 100vw;
    height: 100vh;
}

#main-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
}