#add-favorite {
    position: fixed;
    right: 20px;
    bottom: 60px; 
    background-color: orange;
    color: #fff;
    padding: 17px;
    border-radius: 5px;
    box-shadow: 2px 2px 10px rgba(0,0,0,0.5);
    opacity: 0;
    z-index: 10000; 
    transition: opacity 0.3s ease-in-out;
}




#error-addfavorite {
    position: fixed;
    right: 20px;
    bottom: 60px;
    background-color: orange;
    color: #fff;
    padding: 17px;
    border-radius: 5px;
    box-shadow: 2px 2px 10px rgba(0,0,0,0.5);
    opacity: 0;
    z-index: 10000;
    transition: opacity 0.3s ease-in-out;
}

#message-box {
    position: fixed;
    right: 20px;
    bottom: 60px;
    background-color: #7fad39;
    color: #fff;
    padding: 17px;
    border-radius: 5px;
    box-shadow: 2px 2px 10px rgba(0,0,0,0.5);
    opacity: 0;
    z-index: 10000;
    transition: opacity 0.3s ease-in-out;
}