html, body{
    margin:             0;
    padding:            0;
}
main{
    width:              100dvw;
    height:             100dvh;
    display:            flex;
    justify-content:    center;
    align-items:        center;
}
main img{
    max-width:          60dvw;
    max-height:         60dvh;
}

@media only screen and (max-width: 1200px) {
    main img{
        max-width:          90dvw;
        max-height:         90dvh;
    }
}