html {
    background: black;
    width: 100%;
    height: 100%;
    min-height: 100%;
}

body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.game-background, #background {
    background-size: cover;
    background: url("img/assets/pattern.png") repeat center center;
    content: "";
    position: absolute;
    z-index: -1;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
}

#orientation {
    width: 100%;
    height: 100%;
    position: fixed;
    top: 0;
    left: 0;
    background-color: black;
    background-image: url('img/assets/rotate.png');
    background-repeat: no-repeat;
    background-position: center center;
    background-size: contain;
    display: none;
}