style.css

/* body{
    background-color: white;
    display: flex;
    justify-content: center;
} */

.container{
    /* height: 98vh;
    width: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between; */
    position: relative;
}

#rod-1{
    height: 20px;
    width: 200px;
    background-color: blue;
    text-align: center;
    font-size: small;
    color: white;
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: fixed;
    top: 0px;
    left: 50%;
}

#rod-2{
    height: 20px;
    width: 200px;
    background-color: purple;
    text-align: center;
    font-size: small;
    color: white;
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: fixed;
    bottom: 0px;
    left: 50%;
}

#ball{
    height: 20px;
    width: 20px;
    border-radius: 50%;
    background-color: red;
    position: fixed;
    top: 20px;
    left: 52.5%;
}