html, body {
    height: 100%;
    width: 100%;
    margin: 0;
    background-color: rgb(10, 66, 10);
}

div {
    color: aqua;
}

.vbox {
    height: 100%;
    width: 100%;
    display: flex;
    justify-content: center;
    flex-direction: column;
}

.hbox {
    display: flex;
    justify-content: center;
}