*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    height: 100%;
    height: -webkit-fill-available;
}

body {
    width: 100%;
    height: 100%;
    height: -webkit-fill-available;
    overflow: hidden;
    background: #000;
    touch-action: none;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
    position: fixed;  /* Prevents scroll bounce on iOS */
}

canvas {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    /* Safe areas for notched phones and iPads */
    padding-top:    env(safe-area-inset-top,    0px);
    padding-bottom: env(safe-area-inset-bottom, 0px);
    padding-left:   env(safe-area-inset-left,   0px);
    padding-right:  env(safe-area-inset-right,  0px);
    touch-action: none;
}