body {
    background-color: black;
    color: white;
    font-family: 'Courier New', monospace;
    text-align: center;
    padding: 20px;
}
input, button {
    font-family: 'Courier New', monospace;
    background-color: black;
    color: lime;
    border: 1px solid lime;
    padding: 5px;
}