html, body {
    background: #000000 !important;
    /*height: calc(100% - 2px);*/
    height: 100%;
}

#gameBackground {
    background: #000000;
    padding-top: 0;
    margin-top: 0;
    padding-bottom: 0;
}

#main_container {
    height: 100%;
}

#testingPanel {
    display: none;
}
#game_holder {
    border: none;
}