body {
    margin: 0;
    display: flex;
    justify-content: center;
    flex-direction: column;
    align-items: center;
    height: 100vh;
    background-color: #020617;
    font-family: "Courier New", Courier, monospace;
    color: #f0f0f0;
}

canvas {
    z-index: 2;
    position: fixed;
    width: 100%;
    height: 100%;
    display: block;
}

.grid {
    z-index: 0;
    margin: 0;
    position: absolute;
    top: 0px;
    left: 0px;
    height: 100%;
    width: 100%;
    background-image: linear-gradient(to right, #0d0d0d 1px, transparent 1px), linear-gradient(to bottom, #0d0d0d 1px, transparent 1px);
    background-size: 1rem 1rem;
    background-position: center center;
}