#goTopBtn {
    display: none;
    cursor: pointer;
    position: fixed;
    bottom: 11%;
    right: 20px;
    z-index: 3000;
    background: rgba(45, 45, 45, 0.8);
    width: 50px;
    height: 50px;
    border: none;
    text-align: center;
    font-size: 20px;
    color: white;
    border-radius: 35px;
    transition: all 0.3s ease;
}
#goTopBtn:hover {
    background-color: #555;
}
#goTopBtn.gamepage  {
    bottom: 5%;
}