#goTopContainer {
    display: none;
    font-size: 30px;
    position: fixed;
    bottom: 60px;
    right: 50px;
    border: 2px solid #333;
    border-radius: 5px;
    width: 45px;
    height: 45px;
    line-height: 45px;
    text-align: center;
    cursor: pointer;
}