body {
    margin: 0;
    padding: 0;
    color: rgba(255, 255, 255, 0.87);
    background-color: #000000;
    font-family: Arial, Helvetica, sans-serif;
    overflow: hidden;
}

#app {
    width: 100%;
    height: 100vh;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 16px;
}

canvas {
    width: 100%;
    height: 100%;
    object-fit: contain;
    /* <https://caniuse.com/#feat=object-fit> */
    background-color: #000000;
    display: block;
    margin: 0 auto;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 0;
    
}

#version {
    position: absolute;
    left: 5px;
    top: 605px;
}