body {
    background: black;
    color: white;
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    user-select: none;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    height: 100vh;
}

button {
    background-color: black;
    border: none;
    color: white;
    cursor: pointer;
    user-select: none;
    font-size: 18px;
}