html, body {
    margin: 0;
    padding: 0;
    background: #eee;
}

h1 {
    font-size: 1em;
    padding: 10px 0 10px 5px;
    background: #000;
    margin: 0
}
h1 a {
    color: #fff;
    text-decoration: none;
}

h3.top {
    background: #eee;
    padding: 5px;
    border-radius: 5px;
}

.container {
    padding-top: 10px;
    background: #fff;
}

img.top-radius {
    border-top-left-radius: 5px;
    border-top-right-radius: 5px;
}

img.game-img {
    width: 100%;
}

img.retro {
    image-rendering: pixelated;
}

div#game-area {
    height: 100%;
}

a#close-game-button {
    position: absolute;
    left: 0;
    width: calc(100% - 20px);
    margin: 10px;
}

div#app {
    display: flex;
    align-items: center;
    height: 100%;
}