#mrb-scroll-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #3a801a;
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: none;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    transition: background-color 0.3s ease;
    border: none;
    z-index: 1000;
}

#mrb-scroll-to-top:hover {
    background-color: #3a801a;
}

#mrb-scroll-to-top i {
    font-size: 20px;
}