@media only screen and (min-width: 320px) and (max-width: 991px) {    
    .text-center-smart{
        text-align: center !important;
    }
    
    .heading-text {
        margin-bottom: 25px;
    }
    .mb10-xs{
        margin-bottom: 10px !important;
    } 
    .mb20-xs{
        margin-bottom: 20px !important;
    }
    .mb30-xs{
        margin-bottom: 30px !important;
    }
    .mb40-xs{
        margin-bottom: 40px !important;
    }
    .mb50-xs{
        margin-bottom: 50px !important;
    }  



}