main {
    margin: 0.5em;
}

.navbar {
    margin-top: 5px;
}

.teste {
    background-color: aqua;
}

.card img {}

.button-cart {
    position: fixed;
    width: 50px;
    height: 50px;
    bottom: 20px;
    right: 20px;
    background-color: #f3f3f3c8;
    color: #121212;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 1px 1px 2px #888;
    
}
.button-cart:hover {
    background-color: #ffffff;
    transition: 0.5s;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-down {
    animation: slideDown 0.5s ease-out forwards;
}