@media (min-width: 992px){
    .first_lb_item{
        clear: both;
    }
}
@media (min-width: 544px) and (max-width: 991px){
    .first_lb_item_tablet{
        clear: both;
    }
}
@media (max-width: 543px){
    .first_lb_item_mobile{
        clear: both;
    }
}