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

body {
    background-color: #000;
    color: rgba(255, 255, 255, 0.87);
    overflow: hidden;
}

#app {
    width: 100%;
    height: 100%;
}

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