body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #222;
}

.game-container {
    position: relative;
    width: 400px;
    height: 600px;
    background-color: #444;
    overflow: hidden;
    border: 2px solid #fff;
}

#car {
    position: absolute;
    bottom: 5px;
    left: 150px;
    width: 70px;
    height: 150px;
    background-image: url('car.png');
    background-size: 70px;
    transition: left 0.3s ease;
}

#pothole {
    position: absolute;
    top: -40px;
    width: 80px;
    height: 80px;
    background-size: 80px;
    background-image: url('pothole.png');
    transition: top 0.3s ease;
}


#health-bar {
    position: absolute;
    top: 10px;
    left: 10px;
    width: 200px;
    height: 20px;
    background-color: grey;
}

#health {
    width: 100%;
    height: 100%;
    background-color: green;
}

#game-over {
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: red;
    font-size: 36px;
}