@charset "UTF-8";

html,body {
    margin:0;
    padding:0;
}

#overlay_mask {
    position: absolute;
    display: none;
    top:0;
    right:0;
    bottom:0;
    left:0;
    background-color:#333;
    z-index: 50;
}

#system_area {
    position: relative;
    width: 100%;
    height: 100%;
}

#system_3d {
    position: relative;
    width: 100%;
    height: 785px;
    z-index: 0;
}