#topBtn {
    display: none;          /* Hidden by default */
    position: fixed;        /* Fixed/sticky position */
    bottom: 55px;           /* Place the button from the bottom */
    right: 10px;            /* Place the button from the right */
    z-index: 99;            /* Make sure it does not overlap */
    border: none;
    outline: none;
    background-color: lightYellow;
    color: #0000C0;
    cursor: pointer;        /* Add a mouse pointer on hover */
    padding: 10px;          /* Some padding */
    border-radius: 10px;    /* Rounded corners */
        }

#topBtn:hover { background-color: yellow /* Add a darker background on hover */
             }