body {
    background-color: #202225;
    display: flex;
    flex-direction: column;
    justify-content: center;
    height: 100vh;
    margin: 0;
}

#content {
    display: flex;
    align-items: center;
    flex-grow: 2;
}

#box {
    display: flex;
    background-color: red;
}

footer {
    display: flex;
}