* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    background: #050a04;
    overflow: hidden;
}

#app {
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

#game-container {
    line-height: 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

#game-container canvas {
    display: block;
    outline: none;
}