#gameWindowContainer {
    background-color: black;
    width: 100%;
    height: 100px;
    overflow: hidden;
}

#gameWindowContainer > div:first-of-type {
    background-color: #262626;
}

#gameWindowContainer > div:first-of-type > iframe:first-of-type {
    border: none;
    width: 100%;
    height: 100%;
}