.h5-game_container_v3 {
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    aspect-ratio: 640/480;
    width: 100%;
    /*height: 100%;*/
    margin: auto;
    box-shadow: inset 0 2px 5px rgba(0, 0, 0, .6), 0 5px 2px rgba(0, 0, 0, .1), 0 4px 8px rgba(0, 0, 0, .8);
    border-color: #2F2D2D #434040 #4F4C4C #434040;
    background-color: black
}