* {
    font-family: monospace;
}

body {
    background-color: black;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.master-div {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: rgb(68, 255, 0);
    color: rgb(13, 0, 255);
    width: 600px;
    padding: 50px;
    margin: 50px;
}

.main-div {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: rgb(255, 255, 255);
    color: rgb(13, 0, 255);
    width: 400px;
    padding: 50px;
    margin: 50px;
}

.hidden-class {
    display: none;
}