html {
    height: 100%;
    width: 100%;
}

body {
    margin: 0;
    padding: 0;
    color: rgba(255, 255, 255, 0.87);
    background-color: #444e76;
    height: 100%;
    width: 100%;
}

#app {
    width: calc(var(--vw, 1vw) * 100);
    height: calc(var(--vh, 1vh) * 100);
    position: fixed;
    left: 0;
    top: 0;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

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

#game-container canvas {
    display: block;
    max-width: 100%;
    max-height: 100%;
    margin: 0;
}