html, body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    background-color: black;
    color: white;
    font-family: 'Courier New', Courier, monospace;
    font-size: 15pt;
    line-height: 10pt;

    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

canvas {
    display: block;
}

#first-page {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

#startButton {
    width: 200px;
    height: 30px;
    font-size: 20px;
    border-radius: 10px;
    margin-bottom: 10px;
}