#goTop {
    display: none;
    position: fixed;
    bottom: 20px;
    right: 4px;
    z-index: 9999;
    font-size: 14px;
    border: none;
    outline: none;
    background-color: red;
    color: white;
    cursor: pointer;
    padding: 0px;
    width: 24px;
    height: 24px;
    border-radius: 4px;
}