* {
    box-sizing: border-box;
}

html,
body {
    width: 100%;
    height: 100%;
    margin: 0;
    overflow: hidden;
    background: #0b1020;
}

.game-container {
    width: 100%;
    height: 100%;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #0b1020;
}

.game-container iframe {
    display: block;
    width: min(100vw, 150vh);
    height: min(66.6667vw, 100vh);
    border: 0;
    background: #000;
}