@media only screen and (min-width: 320px) and (max-width: 991px) { 
    .text-center-smart{ text-align: center !important; } 
    .mb5-smart{margin-bottom: 5px !important;} 
    .mb10-smart{margin-bottom: 10px !important; }
    .mb20-smart{margin-bottom: 20px !important; } 
    .padding-three-tb{padding: 10% 0;}


}

@media (max-width: 767px) {
    header a.logo img {height: 71px !important;}
    .marca-prod{ display: none; }    
    .no-bg-color{ background: #575756 !important; }
    .iconItsa-home, .iconItsa-favorite{ display: none; } 
    .isa-prod{display: none;}
    .border-info-producto{border-left: none;}
    .no-padding-lr-smart{padding: 0px !important}

    .dropdown-menu-user {
        text-align: right;
        position: absolute;
        top: 3.5rem;
        left: 0px !important;
        display: none;
        opacity: 0;
        -webkit-transition: opacity 0.5s ease;
        transition: opacity 0.5s ease;
        width: 180px;
    }

    



}