.hoi {
    display: flex;
    flex-direction: column;
    text-align: center;
}

#game {
    border: 2px solid #fff;
    width: 100%;
    height: 500px;

    position: relative;
}

#player {
    width: 50px;
    height: 50px;
    background-color: #00ddff;
    /* background-image: url('img/player.JPG');
    background-size: cover; */

    position: absolute;
    bottom: 0;
    left: 50%;
}

#game h5 {
    padding-left: 5px;
    color: gray;
}

#obstacle {
    width: 20px;
    height: 70px;
    background-color: #001cb9;

    position: absolute;
    bottom: 0;
    right: 0%;
}

#obstacle2 {
    width: 20px;
    height: 70px;
    background-color: #001cb9;

    position: absolute;
    top: 0;
    right: 0%;
}

#end {
    display: none;
    text-align: center;
    padding-top: 20%;
    color: #fff;
}

#end h5 {
    font-size: 30px;
}

#end h1 {
    margin: 20px;
}