html {
    font-size: calc(14px + 0.5vw);
}

body {
    margin: 0;
    padding: 0;
}

main {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(to right, 
    black 0%,
    black 15%,
    rgb(180, 21, 0) 50%,
    black 50%,
    rgb(180, 21, 0) 50%,
    black 85%,
    black 100%);
}

#image-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: auto;
    height: 100vh;
}

#image-invitation {
    height: 100vh;
    width: auto;
}

@media screen and (max-width: 808px) {
    #image-invitation {
        width: 100vw;
        height: auto;
    }

    main {
        background: linear-gradient(0deg, 
        black 0%,
        black 10%,
        rgb(180, 21, 0) 50%,
        black 50%,
        rgb(180, 21, 0) 50%,
        black 90%,
        black 100%);
    }
}

@media screen and (max-width: 650px) {
    #image-invitation {
        width: 100vw;
        height: auto;
    }

    main {
        background: linear-gradient(0deg, 
        black 0%,
        black 10%,
        rgb(180, 21, 0) 50%,
        black 50%,
        rgb(180, 21, 0) 50%,
        black 90%,
        black 100%);
    }
}