body {
    font-family: 'Roboto Mono', monospace;
    background: darkgrey;
    color: white;
    display:flex;
    flex-direction:column;
    align-items: center;
    font-size: 24px;
}

body * {
    margin: 12px;
}

h1 {
    font-weight: 700;
    font-size:42px;
}

h2 {
    text-align: center;
}

ul {
    display: flex;
    flex-direction: column;
    align-items: center;
}