$box-background: blue;
$container-background: lime;
$title-color: cyan;

main {
    h1 {
        color: $title-color;
        text-align: center;
    }

    #container{
        display: flex;
        background-color: $container-background;
        width: 100vw;
        height: 50vh;
        align-items: center;
        justify-content: center;

        #box{
            width: 50%;
            height: 50%;
            background-color: $box-background;
            display: flex;
            text-align: center;
            align-items: center;
            justify-content: center;
        }
    }


}