html,
body {
    overflow: hidden;
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
}

#renderCanvas {
    width: 100%;
    height: 100%;
    touch-action: none;
}

#fps {
    position: absolute;
    background-color: black;
    border: 2px solid red;
    text-align: center;
    font-size: 16px;
    color: white;
    top: 15px;
    right: 10px;
    width: 60px;
    height: 20px;
}

canvas {
    outline: none;
    -webkit-tap-highlight-color: rgba(255, 255, 255, 0); /* mobile webkit */
  }