#gestion_entretien_frequence {
    display:flex;
}
#gestion_entretien_frequence .mb-3:first-child {
    margin-right:5px;
}


#gestion_entretien_joursAssignes {
    display: flex;
    flex-direction: column; /* mobile */
}

@media (min-width: 768px) { /* tablet */
    #gestion_entretien_joursAssignes {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 0.5rem;
    }
}