#game {
    text-align: center;
}

#gameArea {
    width: 60%;
    height: 60%;
    border: 1px solid #000;
    position: absolute;
    left: 50%;
    top: 55%;
    transform: translate(-50%, -50%);
}

.red-dot {
    width: 20px;
    height: 20px;
    background-color: red;
    border-radius: 50%;
    position: absolute;
    cursor: pointer;
}