html, body {
    height: 100%;
}

body {
    margin: 0;
    padding: 0;
    color: rgba(255, 255, 255, 0.87);
    background-color: #000000;
}

#app {
    width: 100%;
    /* The height actually visible: on phones 100vh includes the space behind the browser's address bar, which
       would push the bottom of the game off screen. dvh follows the bar as it shows and hides; vh is the
       fallback for browsers without it */
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

#game-container {
    width: 100%;
    height: 100%;
}