.tab-pane .owl-carousel .owl-item {
    width: 250px !important;
}

.tab-pane .owl-carousel .owl-stage {
    justify-content: center !important;
    display: flex !important;
}

@media (width<990px) {
   .tab-pane .owl-carousel .owl-stage {
    display: block !important;
    justify-content: flex-start !important;
} 
.tab-pane .owl-carousel .owl-item {
    width: auto !important;
}
}